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Diamond Rain, Geysers, and the Strange Reality of Neptune’s System

27/5/2026

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Neptune and Triton Series, Part 3
​There is a point where outer Solar System science stops feeling merely distant and starts feeling genuinely strange.
Picture
Neptune: Great Dark Spot and Atmospheric Features
Reconstructed from two images taken by NASA’s Voyager 2, this photograph shows Neptune’s Great Dark Spot, an Earth-sized anticyclonic storm, alongside bright methane-ice clouds that shift and reform rapidly. South of the storm is the fast-moving cloud feature known as “Scooter”.

Neptune is one of those places.

​At a glance, Neptune can look serene. It’s a deep blue planet suspended in darkness. But the science behind that appearance is more dramatic. Neptune’s atmosphere is made mostly of hydrogen and helium, with methane as an important minor component. Methane helps produce Neptune’s blue colour by absorbing red light, and Neptune’s atmosphere hosts some of the fastest winds measured anywhere in the Solar System, reaching more than 2,000 kilometres per hour. 

That alone would be enough to make Neptune interesting. But the deeper story is even stranger.

​One of the most famous ideas associated with Neptune is diamond rain. This phrase is easy to sensationalize, so it is worth being precise. It does not mean that ordinary methane clouds high in Neptune’s visible atmosphere are dropping gemstones the way Earth clouds drop water. The scientific idea concerns the deep interior of the planet. Under the immense pressures and temperatures inside ice giants like Neptune and Uranus, carbon-bearing material derived from methane can be compressed into diamond. Laboratory experiments at SLAC and Lawrence Livermore National Laboratory produced strong support for this process, observing diamond formation under relevant high-pressure conditions. Those diamonds are expected to sink deeper into the planet’s interior. 
Picture
Neptune Interior and Diamond Formation
In an experiment conducted at the Linac Coherent Light Source, the team studied plastic simulating compounds derived from methane. Methane forms hydrocarbon chains that, under high pressure and temperature, produce “diamond rain” in the interiors of icy giant planets like Neptune. Scientists recreated these conditions using high-powered optical lasers and observed small diamonds forming in real time with X-rays.
​This is where some of the more vivid imagery comes from. People describe Neptune as having a deep mantle where diamond material may accumulate, even in structures dramatic enough to invite phrases like “diamond icebergs”. The careful scientific claim is narrower than the most poetic versions, but still extraordinary. Deep within Neptune, conditions may literally create and separate out diamond. 

And Neptune’s moon Triton is strange in an entirely different way.

​When Voyager 2 flew past Neptune in 1989, it found that Triton was not a dead frozen relic. Instead, it discovered evidence of active geysers erupting from Triton’s surface. NASA notes that Voyager 2 saw geysers spewing icy material upward more than 8 kilometres. Triton is also extraordinarily cold, with surface temperatures around minus 235 degrees Celsius, yet it still showed signs of activity. 
In this Voyager 2 image from August 24, 1989, a geyser-like plume of dark material rises several kilometers above the surface of Neptune’s moon Triton. The narrow column extends nearly eight kilometers before forming a cloud that drifts about 150 kilometers westward in Triton’s winds. While scientists are still determining the mechanism responsible, one possibility is that the eruption is driven by pressurized nitrogen gas carrying dark particles and ice grains into the thin atmosphere.
Note: The same image is shown in both panels. The one on the right is marked to indicate the top and bottom of the plume, as well as the lateral extent of the cloud. 
Picture
Triton's Dark Plume
​That combination is one of the reasons Triton keeps showing up in discussions of future exploration. It is cold, distant, likely captured, geologically intriguing, and possibly still active. It is not merely a moon at the edge of the Solar System. It is one of the more compelling unexplored worlds we know about. 
​And there is that other humbling fact. All of this close-up knowledge still comes from one visit. Voyager 2 remains the only spacecraft ever to visit Neptune and Triton. That means our most direct observations of this strange planetary system still rest on a single flyby conducted in the summer of 1989. 

That perspective changes how I think about the Solar System.

​It is easy to assume that the great age of planetary discovery is mostly behind us, that what remains is refinement. Neptune and Triton argue otherwise. They suggest that even within our own Solar System, there are places where the first-order weirdness has not yet been exhausted. There are still worlds whose basic story is dramatic enough to feel almost fictional, yet fully scientific. Captured planets turned moons, active geysers in deep cold, and interiors where carbon may fall as diamonds.

​The strange part is not that such places exist.

The strange part is that they are still, in many ways, barely known.


Sources

  • Lawrence Livermore National Laboratory, Mining for Diamonds in Giant Icy Planets
    • https://lasers.llnl.gov/news/mining-diamonds-giant-icy-planets
  • Lawrence Livermore National Laboratory, Scientists create 'diamond rain' that forms in the interior of icy giant planets like Neptune
    • https://www.llnl.gov/article/43621/scientists-create-diamond-rain-forms-interior-icy-giant-planets-neptune
  • NASA Jet Propulsion Laboratory, Triton’s Dark Plume
    • https://www.jpl.nasa.gov/images/pia14448-tritons-dark-plume/
  • NASA Science, Neptune Facts
    • https://science.nasa.gov/neptune/neptune-facts/
  • NASA Science, Neptune Scooter
    • https://science.nasa.gov/image-detail/amf-pia01142/
  • NASA Science, Triton Overview
    • https://science.nasa.gov/neptune/moons/triton/
  • NASA Science, Voyager 2 Mission
    • https://science.nasa.gov/mission/voyager/voyager-2/
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Triton: When a Dwarf-Planet-Like World Becomes a Moon

13/5/2026

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Neptune and Triton Series, Part 2
Picture
Global Colour Mosaic of Triton
Taken in 1989 by Voyager 2 during its flyby of the Neptune system.

One of the most interesting things about Neptune is that one of its moons may not really have begun as a moon at all.

​Triton, Neptune’s largest moon, is unusual for a very specific reason. It travels around Neptune in a retrograde orbit, meaning it moves in the opposite direction of Neptune’s rotation. NASA notes that Triton is the only large moon in our Solar System with this kind of backward orbit. That alone makes it stand out. Retrograde motion on this scale is one of the strongest clues that Triton did not form quietly in orbit around Neptune the way many large moons did around the giant planets. 

Instead, the leading scientific explanation is that Triton was captured.

​More specifically, scientists think Triton was originally a Kuiper Belt object that Neptune gravitationally captured long ago. The Kuiper Belt is the broad region of icy bodies beyond Neptune, extending roughly from 30 AU to about 50 AU from the Sun. It includes Pluto and many other frozen remnants from the early Solar System. Triton’s orbit, composition, and broad similarities to Pluto all support the idea that it came from that outer population of worlds. 
Picture
The Kuiper belt is a ring-shaped region of icy bodies beyond the outer edge of Neptune's orbit. This illustration depicts the Kuiper belt with a few of the space probes NASA has launched over the years.

This is where the story becomes especially compelling.

​Triton is about 2,700 kilometres in diameter, while Pluto is about 2,377 kilometres across. They are not identical, but they are close enough in scale that the comparison feels meaningful, not superficial. NASA explicitly notes that Triton shares many similarities with Pluto. So when we say that Triton may have been captured from the Kuiper Belt, we are not just saying Neptune stole a random chunk of ice. We may be talking about a world broadly comparable to Pluto that ended up becoming a moon. 
Picture
Pluto Dazzles in False Colour

That is a remarkable category-crossing event.

​We tend to sort Solar System objects into tidy bins: Planet, moon, dwarf planet, comet, asteroid. Triton is a reminder that those categories describe present status, not necessarily original identity. A body can begin as one kind of thing and later become another in a dynamical sense. Triton may be one of the clearest examples of a dwarf-planet-like object becoming a moon.
Picture
The Neptune System (Labeled) by NASA's James Webb Space Telescope
Captured by NIRCam, this image shows Neptune's turbulent atmosphere, rings, several smaller moons, and the largest moon, Triton. 

And its story is not over.

​Because Triton orbits Neptune in the “wrong” direction, tidal interactions are expected to slowly alter its orbit over immense timescales. The broad scientific picture is that Triton is gradually spiralling inward toward Neptune. Far enough in the future, it could cross Neptune’s Roche limit and be torn apart, potentially forming a more substantial ring system. In other words, a captured outer Solar System world may eventually become a ring. 
​That kind of long-term instability adds another layer of perspective. Even major moons are not always permanent in the way we casually imagine them to be. What looks stable on human timescales may be temporary on planetary ones.
​I think that is part of why Triton is so memorable. It is not just an object. It is a history lesson in motion: Formation, migration, capture, and eventual transformation.

A moon, perhaps. But only after first being something else.


Sources

  • HowStuffWorks, Pluto Is Just One of Millions of Objects in the Kuiper Belt
    • https://science.howstuffworks.com/kuiper-belt.htm​
  • NASA, Neptune Odyssey: Mission To The Neptune-Triton System
    • https://science.nasa.gov/wp-content/uploads/2023/05/NeptuneOdyssey.pdf​
  • NASA, Pluto Dazzles in False Color
    • https://science.nasa.gov/resource/pluto-dazzles-in-false-color/
  • NASA Science, Hubble Finds New Neptune Moon
    • https://science.nasa.gov/missions/hubble/hubble-finds-new-neptune-moon/
  • NASA Science, Neptune Moons Facts
    • https://science.nasa.gov/neptune/moons/facts/
  • NASA Science, Triton Overview
    • https://science.nasa.gov/neptune/moons/triton/
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Neptune: The Far Blue Frontier

29/4/2026

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Neptune and Triton Series, Part 1
​When we look up at the night sky, Jupiter and Saturn still feel, in some sense, close. They are distant worlds, obviously, but they remain part of ordinary skywatching. You can point them out. You can notice them with the naked eye. They feel like members of the visible Solar System.
Picture
Neptune Full-Disk Portrait
Produced from images taken by NASA’s Voyager 2 in the summer of 1989.

Neptune does not.

​Neptune sits far beyond that familiar zone. It is the eighth planet from the Sun, more than 30 astronomical units away on average. An astronomical unit, or AU, is the average distance between Earth and the Sun, about 150 million kilometres. On that scale, Earth is at 1 AU, Jupiter is about 5.2 AU, Saturn about 9.5 AU, and Neptune a little over 30 AU from the Sun. Neptune is therefore roughly three times farther from the Sun than Saturn and nearly six times farther out than Jupiter. It is also so distant and faint that it is not visible to the naked eye. 
Picture
The Neptune System by NASA's James Webb Space Telescope
Captured by NIRCam, this image displays Neptune's turbulent atmosphere, rings, and the prominent moon Triton (top left).

That scale matters.

​It is easy to memorize the order of the planets and still not really feel the geometry of the Solar System. Neptune helps correct that. If Earth were one metre from the Sun in a scale model, Jupiter would be about 5.2 metres away, Saturn about 9.5 metres away, and Neptune around 30 metres away. The outer Solar System is not just a little farther out. It is vastly farther out.
​That distance also changes the character of sunlight itself. By the time sunlight reaches Neptune, it is far weaker than what we experience on Earth. Neptune is cold, dark, and remote, yet somehow still dynamic. NASA describes it as an ice giant whipped by supersonic winds, with methane in its atmosphere contributing to its famous blue colour. Methane absorbs red wavelengths of light, which is one reason Neptune appears blue in visible light. 
​And that, for me, is part of Neptune’s fascination. It would already be interesting if it were only distant. But it is not only distant. It is active, structured, meteorologically violent, and scientifically unfinished.
3D Visualization of Voyager 2 by NASA

We have only visited it once.

​NASA’s Voyager 2 spacecraft flew past Neptune on August 25, 1989, and remains the only spacecraft ever to visit Neptune. That single flyby transformed Neptune from a remote blue point into a real planetary system with storms, rings, and a moon that turned out to be one of the strangest worlds in the Solar System. 
​There is something humbling about that. We speak of Neptune as if it were a known place, but in mission terms it has barely been explored at all. A single spacecraft passed by once, more than three decades ago, and much of what we know in detail still comes from that brief encounter, combined with telescope observations since then. 
​Perhaps that is the perspective Neptune offers best. It reminds us that even within our own Solar System, familiarity can be an illusion. We have maps, names, orbital diagrams, and broad classifications. But some places remain mostly untrodden.

Neptune is one of them.


Sources

  • NASA Basics of Space Flight, Chapter 1: The Solar System
    • https://science.nasa.gov/learn/basics-of-space-flight/chapter1-2/
  • NASA Science, Neptune Facts
    • https://science.nasa.gov/neptune/neptune-facts/
  • NASA Science, Neptune Overview
    • https://science.nasa.gov/neptune/​
  • NASA Science, Voyager 2 Mission
    • https://science.nasa.gov/mission/voyager/voyager-2/
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How I Prompted This Hard Sci-Fi Story with ChatGPT 4.5

17/9/2025

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One night I was experimenting with ChatGPT to see if I could prompt a hard sci-fi short story that was constrained in a similar manner to Alastair Reynold’s ‘Revelation Space’ Universe. That means no FTL (Faster Than Light) travel, decades-long journeys, and scientific details that would hold up under scrutiny. I used GPT-4.5 for this task and started the process with ChatGPT’s deep research feature on nearby stars, exoplanets, and other scientific details for the story.

My Approach

  • Constraints First: I told the model to keep it hard science (real exoplanets, real stars, and relativistic flight only), include a shipboard AI that plays a key role throughout the story, and structure the narrative so it includes three mini-chapters (Earth Departure → Proxima Centauri → Next Best Star System).
  • Deep Research: I utilized deep research to gather and evaluate scientific facts for the story. Exoplanets featured include:
    • Proxima b (~1.07 M⊕, ~0.048–0.05 AU, ~11.2-day orbit, likely tidally locked; harsh flare environment).
    • Ross 128 b (~1.3–1.4 M⊕, ~0.049 AU, ~9.9-day orbit) orbiting a quieter red dwarf—better odds for a stable atmosphere and retained biosignatures.
  • Realistic First Contact: I found the first draft of Chapter 3 very unrealistic as the AI was able to instantly act as a translator for the extraterrestrials, so I prompted ChatGPT to revise Chapter 3 so the crew and AI had to gather a real corpus of signals and behaviours before meaning emerged. On the cloud-shrouded world (permanent overcast), “never seeing the stars” became both biologically and culturally coherent.

​Why Use An LLM For Hard Sci-Fi?

​GPT-4.5 handled style and cohesion while I provided the outline, anchored the physics, and directed the story. The model synthesized tone, pacing, and scene transitions, while deep research grounded the numbers, orbits, stellar behaviour, and environments. That split kept the story tight and credible.

Pattern Recognition, Language, And New Environments

The translation arc I wanted in the story mirrors how real understanding grows:
  • Data Before Meaning: You don’t decode a language from one utterance; you need hours of audio, context, and interaction.
  • Multimodal Grounding: Sound plus behaviour plus setting beats raw text or speech alone.
  • Probabilities, Not Certainties: Hypotheses get proposed, tested, and revised—exactly how good science (and careful field linguistics) works.

AI Is Already Accelerating Science

This workflow reflects where AI is useful today:
  • Astronomy: Classifying light curves, denoising spectra, flagging exoplanet candidates, modeling stellar flares.
  • Planetary Science: Terrain mapping, autonomous navigation, onboard triage for what to study next.
  • Signal Analysis/SETI-Adjacent: Anomaly detection and structured-signal characterization.

​Read The Story

​If you’d like to see the finished product of this experiment, you can read the full three-chapter short story here:
Interstellar Odyssey (PDF)
File Size: 219 kb
File Type: pdf
Download File

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The story follows humanity’s first interstellar voyage—beginning with Earth’s departure, continuing through the Proxima Centauri system, and culminating in first contact on Ross 128 b.
Picture
​​Image generated with ChatGPT. 

​Takeaways

If you want to prompt great stories with ChatGPT:
  • Start with clear constraints.
  • Utilize verified data. 
  • Let the model handle cohesion and voice. 
  • Keep a human in the loop for truth and taste. 
The result is fiction that reads smoothly but leans on real numbers—a voyage carried by patience, pattern recognition, and the quiet partnership between humans and their machines.
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Spruce Woods Star Party 2025: Clouds, Stars, and Community

3/9/2025

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From Friday, August 22nd to Sunday, August 24th, I joined fellow Royal Astronomical Society of Canada (RASC) Winnipeg Centre members for our annual Spruce Woods Star Party. The weather wasn’t always in our favour, but the weekend still had plenty of memorable moments, camaraderie, and glimpses of the night sky that remind me why I love star parties so much.
Picture
Star Party Community Tent

Friday, August 22nd – Arrival and Clouds

​I arrived just over a half hour after sunset with just enough light left to set up the tent and inflate the air mattress (non-red lights are banned at night at star parties to protect night vision). The difference between Spruce Woods and city skies was immediately apparent when the clouds mostly cleared after camp setup was complete. The stars and constellations popped against the darker backdrop, far beyond what I normally see in Winnipeg or even at Bird’s Hill Provincial Park, which is still very much affected by light pollution from nearby Winnipeg.
​But as quickly as the stars appeared, the clouds rolled in and stayed for the rest of the night. I woke up a couple times hoping for a clearing, but clear skies never came. The thick clouds stuck through the morning, with the first hint of sunlight breaking through around 9:30-10am the next day.
At least I had something to keep me engaged through the long, cloudy night: A lineup of excellent ‘Astrum Space’ astronomy podcasts (Apple Podcasts, YouTube Catalogue), always a great companion when the sky doesn’t cooperate (and before falling asleep on typical nights).
Star Party Campsite

Saturday, August 23rd – Activities, Tours, and Observing

​The morning began with optimism. I set up my SeeStar S50 to observe the sun peeking through a patch of sky—only for the clouds to move back in almost immediately. I packed it away and switched gears for a refreshing bike ride on campground trails. Kiche Manitou Campground has an amazing collection of paths connecting virtually all areas of the campground. Cycling or hiking the trails is the best way to get around. 
Campground Trails
​Later came the swap meet, always a highlight. This year it was hosted by one of our members dressed as a pirate, making this amateur astronomer buy-and-sell even more fun.
Picture
Swap Meet Table
Picture
Swap Meet Pirate
​Sadly, I missed this year’s telescope tour, but I believe it was brief. Coming back from the showers around 7:20pm, I overheard someone loudly say, “And that concludes the telescope tour”, or something to that effect. If true, that’s far shorter than the 1–2 hours of previous years. However it makes sense as not many scopes were set up due to the poor sky conditions. 
​Later that night we got lucky, with the clouds breaking a bit for Gerry’s famous binocular tour. His tours are always a favourite of mine–packed with inspiration, facts, and cosmic perspective. He pointed out where Voyager 1 is located in our sky (the constellation Ophiuchus) and how far away it is (around one light-day from Earth). It’s one of the fastest human-made objects, yet would take thousands of years to reach Proxima Centauri (and that’s only if it were headed that way). He also showed how clusters of stars can appear spread across the sky because our solar system is drifting through them. We explored constellations and asterisms like Sagitta and the Coathanger within the Summer Triangle. That was just a taste of Gerry’s amazing tour. You’ll have to attend yourself for the full experience. ;)
​I’m seriously considering purchasing image-stabilized binoculars for next year (and to enhance my astronomy gear kit). I held back from purchasing them this time, but tours like Gerry’s really highlight their value. Too bad my not purchasing those binoculars didn’t help us get better weather (I’m referencing that amateur astronomer superstition/joke: Buy a new telescope, pair of binoculars, or desirable new astronomy gear, and the weather is guaranteed to turn on you—sometimes for quite a while). 
​After the tour, I turned to my own gear. With my Celestron Regal M2 100mm ED spotting scope, I revisited some favourites: The Double Cluster in Perseus, the shimmering Pleiades, and the always-magnificent Saturn with its iconic rings.
My SeeStar S50 also came back out, this time targeting deep-sky objects. I managed to image:
  • M103 (Open Cluster)
  • NGC 6888 (Crescent Nebula)
  • SH 2-142 (Wizard Nebula)
  • IC 63 (Ghost of Cassiopeia)
  • NGC 281 (Pacman Nebula)
  • NGC 6946 (Fireworks Galaxy)
SeeStar's Object Information & My Images (Saturday Night/Sunday Morning)
​One of the SeeStar’s best qualities is that I can monitor it remotely from inside my tent—perfect for nights like this when the chill sinks in. I drifted in and out of sleep, waking up to switch targets before crawling back into my sleeping bag.
​By 4 am, I stepped outside one last time to pack everything up. Dew was everywhere (hooray for the anti-dew feature on my SeeStar S50 (Note: It runs the battery down faster)), but seeing Orion rising in the east alongside Taurus the Bull and the Pleiades, then turning to see the rest of the night sky, just filled me with awe and delight.

Sunday, August 24th – Breakfast, Raffle, and Farewell

​Sunday morning brought one of the most beloved traditions of the Star Party: The community breakfast. Plates were piled with sausages, pancakes, eggs, fruit, and hash browns (the latter disappearing especially quickly).
Picture
Members hard at work cooking breakfast. 
​Then came the raffle. I walked away with a new toque and a screen/lens cleaning kit—useful prizes for future observing sessions and of particular note after the cold and dew this weekend. Afterward, we posed for a group photograph before packing up camp and heading back to the city.

​Even with the clouds, Spruce Woods was awesome. I’m already counting the days until next year’s Spruce Woods Star Party. With a little luck, the skies will open wider, the nights will last longer, and I’ll have my new image-stabilized binoculars in hand.
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A Universe in Your Browser

6/8/2025

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On June 23, 2025, the Vera C. Rubin Observatory unveiled its first celestial masterpiece—an ultra-wide-field image capturing roughly 10 million galaxies in the southern region of the Virgo Cluster. Located about 55 million light-years away, the Virgo Cluster is the largest collection of galaxies relative to our own Milky Way.

What You're Seeing

A mesmerizing blend of blue‑to‑red stars from our own galaxy and spiral, elliptical, and merging galaxies both near and far (many redshifted and incredibly distant).
You’ll also be able to see streaks from asteroids crossing the frame when toggling “with asteroids” in Skyviewer’s display settings. 
​The image was built from 1,185 exposures over seven nights, covering ~25 square degrees of sky. For context, each individual exposure by the Rubin Observatory spans 10 square degrees (roughly the area of 45 full moons).

Explore It Yourself

Head over to the Skyviewer Explorer to pan, zoom, and lose yourself in this cosmic tapestry.
​I highly recommend the guided tour titled Rubin’s Cosmic Treasure Chest, which highlights major objects like Messier 49, Messier 61, NGC 4334, NGC 4343, galaxy mergers, and more.

Why It Matters

This is just a first glimpse of the Legacy Survey of Space and Time (LSST). The LSST is a decade-long mission in which the Rubin Observatory will capture hundreds of images each night of the Southern Hemisphere sky. Over ten years, Rubin will spot supernovae, track asteroids, inventory our Solar System, map the Milky Way, and deepen our understanding of dark matter and dark energy.

Go get lost among the galaxies. 


Picture
This image captures a small slice of the Virgo Cluster as seen by the NSF/DOE Vera C. Rubin Observatory, revealing a rich mix of spiral galaxies, merging systems, distant galaxy groups, stars from our Milky Way, and more.

Sources

  • NOIRLab – 'The Cosmic Treasure Chest' Image
    • https://noirlab.edu/public/images/noirlab2521a/
  • Rubin Observatory – Official Site
    • https://rubinobservatory.org/
  • Skyviewer Explorer
    • https://skyviewer.app/explorer
  • Rubin’s Cosmic Treasure Chest – Interactive Tour
    • https://skyviewer.app/tours/cosmic-treasure-chest
  • How Rubin Works: Legacy Survey of Space and Time (LSST)
    • https://rubinobservatory.org/explore/how-rubin-works/lsst
  • Rubin Observatory Gallery – 'Cosmic Abundance' Image
    • https://rubinobservatory.org/gallery/collections/main-gallery/32ejonfcf955v6luvhdvbd746c
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Know Your Resources: Heavens-Above

23/7/2025

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Have you ever spotted a bright “star” gliding across the night sky, or wondered when the next eclipse or satellite pass will occur? 

One great resource I'd like to share is Heavens-Above, a free, web-based tool for skywatchers, science educators, and anyone curious about satellites and space phenomena. This site provides a wealth of real-time and predictive information about what’s happening above us - from satellite flyovers to deep-space missions – all tailored to your location. Users can set their observing location (by city or coordinates) for personalized sky data and even create an optional login to save their preferences. It’s completely free to use (though donations are appreciated to help cover costs). In short, Heavens-Above is a one-stop shop to learn what’s up in the sky at any given moment.

Navigating Heavens-Above: Main Sections

Heavens-Above’s homepage is organized into six main sections:
  • Configuration: Set or change your observing location and access Login (optional) features to save settings. By default, the site starts at 0°N, 0°E, so one of the first things you’ll want to do is set your location for accurate data. 
  • Satellites: Track and predict satellite passes and orbits. This section includes a live sky view, 10-day forecasts for satellites of special interest (ISS, Tiangong, Hubble Space Telescope), daily predictions for brighter satellites, an interactive 3D visualization for the ISS, a dynamic 3D orbit display of Starlink satellites, and more.
  • Deep Space Missions: Follow probes and missions leaving Earth’s vicinity. See the status of Spacecraft escaping the Solar System or watch an animation of the trajectory of SpaceX’s Tesla Roadster from Earth to its own orbit around the Sun.
  • Astronomy: Explore classical astronomy data, including an interactive sky chart, positions of the Sun, Moon, planets, comets, asteroids, constellations, and a dedicated page to learn about upcoming Solar Eclipses (Annular–where the Moon covers the Sun’s center, leaving a ring-like appearance, Partial, Total, and Hybrid).
  • Miscellaneous: Find extras like the Heavens-Above forum on Reddit, time tools (“What time is it?”), a calendar, FAQ, and links to other space and astronomy sites of interest.
  • Statistics: Dive into fun stats about the site’s usage (daily page counts, visits by country, OS, language, etc.). A reminder of the global community of sky enthusiasts using this tool.
​This clear layout makes it easy to jump to whatever interests you. Whether you’re checking tonight’s satellite visibility or planning for a future eclipse.

Tracking Satellites and Space Stations

Heavens-Above specializes in satellite tracking–arguably its biggest draw. Once you’ve configured your location, the site can show you a listing of upcoming passes for visible satellites. It features a searchable database of satellites (past and present) and daily predictions for brighter satellites. You get 10-day forecasts for popular objects like the International Space Station (ISS), the Hubble Space Telescope, and SpaceX’s Starlink satellites. This means you’ll know exactly when and where to look to spot the ISS flying overhead or a chain of newly launched Starlink satellites. Heavens-Above also provides interactive visualizations, including a Live Sky View, Starlink - Dynamic 3D Orbit Display, and ISS Interactive 3D Visualization. These show satellite positions and orbits around Earth in real time. It’s thrilling to watch the ISS circling the globe and realize that it’s right above a specific point on Earth at that particular moment. For each satellite pass prediction, you can click to get a detailed sky chart showing the path of the satellite against the stars for your location and time. In short, Heavens-Above makes satellite spotting easy and fun.

Deep Space Missions and Perspective

Heavens-Above’s Spacecraft escaping the Solar System page offers a unique perspective on humanity’s farthest journeys. There are top-down and side views of the Solar System with plots of the current positions of our first interstellar probes (Pioneers 10 & 11, Voyagers 1 & 2, and New Horizons). The page displays their distances, speeds, and even which constellations they’re headed toward. It’s a powerful reminder of the size of the universe and the great distances between stars. On the diagram’s scale the nearest star would be about 100 meters away and Voyager 1 would take ~70,000 years to reach it. Space is vast and our first emissaries to the stars have just begun their journey into this cosmic ocean. This feature can be awe-inspiring in the classroom or during outreach, helping convey just how far (and how not-far) our probes have gone. 

Solar Eclipses and Other Astronomy Tools

Another highlight of Heavens-Above is its comprehensive Solar Eclipses page. If you’re excited about an upcoming eclipse, this tool is a must-see. The site provides details for every solar eclipse from 1900 to 2100, complete with interactive maps and animations showing the eclipse path and where it will be visible. For any given eclipse (past or future), you can view a world map with the swath of the Moon’s shadow, clearly marking regions of totality, annularity, or partial eclipse visibility. Beyond eclipses, the Astronomy section offers a rich set of observing tools: An interactive sky chart that shows the stars and planets overhead at any time and location, tables for the Sun and Moon (rise/set times, phases), planetary positions, and data on visible comets and asteroids. Information is presented in clear, data-driven charts and maps. Whether you’re identifying two bright “stars” at dusk (perhaps planets!) or checking when astronomical twilight begins, Heavens-Above’s astronomy tools have you covered.

Use Cases: From Classrooms to Community Events

​Perhaps the best part about Heavens-Above is how broadly it can be used. It’s accessible and useful to both beginners and experienced observers. For educators, Heavens-Above offers engaging ways to bring astronomy alive. Teachers can generate sky charts to enhance lessons or have students track the ISS and calculate its orbital period. Information on Solar Eclipses can be used in science classes or public library programs to illustrate why an eclipse might only be partial in one location and total in another. For librarians, astronomers, and program coordinators, this site is a goldmine for planning community events. Imagine hosting an ISS viewing party. Heavens-Above can tell you the exact time the Station will pass overhead and where to look. Planning a Mars opposition observation night or a workshop on satellites? Print out Heavens-Above star charts or satellite pass schedules for your location. Even casual sky observers and curious individuals will find value. You can identify that mysterious bright light you saw moving last night, or simply get a heads-up that SpaceX’s Starlink train will be visible at 6 AM tomorrow. Because the site tailors predictions to your set location, it takes the guesswork out. No more wondering if an online timetable is in UTC or meant for another city. Heavens-Above empowers everyone to engage with the sky in an informed way, turning a casual glance upward into a chance for discovery.

Explore It Yourself

The next time you plan a night under the stars, hear about a satellite launch, or get excited for an eclipse, give Heavens-Above a try. Its robust and user-friendly tools will enrich your understanding of what’s happening in the sky above. Whether you’re an astronomer, a teacher, a librarian, or just someone curious with eyes on the sky, this resource will quickly become an indispensable companion in your cosmic explorations.
Happy Observing!

Picture
​Image generated with ChatGPT. 
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Star Stories & Sky Teachings: Indigenous Constellations Over Turtle Island

16/4/2025

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On Thursday, March 27th, I headed to the Lockhart Planetarium at the University of Manitoba. The event, ‘Storytelling of the Stars’, led by Rockford McKay and Dr. Phil Ferguson, immediately brought to mind Wilfred Buck’s ‘Tipiskawi Kisik: Night Sky Star Stories’, which I read last year.
​The evening was filled with connection and recognition—some stories familiar, some new, and many deepened by hearing them aloud beneath a simulated night sky. Just as I’ve gradually learned the names and positions of many IAU-standardized constellations, I’m now doing the same with Indigenous constellations. Repetition, each retelling, roots the stories deeper within.

Turtle Island & Makinak: A Living Calendar

In many Indigenous traditions, North America is Turtle Island, where the turtle is more than symbolic. The constellation Cepheus represents Makinak—the turtle whose shell is a living calendar: thirteen plates for thirteen full moons, twenty-eight edge divisions for twenty-eight days between moons. Long before our modern calendar, the sky and turtle shell tracked time together. Many will recognize Cepheus as a house due to its brightest stars, but to Indigenous storytellers, Makinak’s shell tells a deeper tale of cosmic rhythm.
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‘Edwin Bighetty. Makinak: Cepheus’ from ‘Tipiskawi Kisik: Night Sky Star Stories’

Atima Atchakosuk: The Dog Stars & Mista Muskwa: The Great Bear

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​‘Edwin Bighetty. Ahtimah Atchakosuk: Polaris & Little Dipper’ from ‘Tipiskawi Kisik: Night Sky Star Stories’
The Big and Little Dippers share a corner of the sky and intertwined stories. At the event, we explored Atima Atchakosuk—the Dog Stars. Long ago, humans had no protectors, vulnerable to nightly dangers. Mikun (Wolf) sent two pups to guard us, and later Mischachakanis (Coyote) and Makisew (Fox) followed, sending more dogs. These dogs became our early warning system. The Little Dipper represents their leash, with Polaris as the tether—forever circling the celestial camp, alert and guarding. 
Picture
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Images from ‘Tipiskawi Kisik: Night Sky Star Stories’
But danger also lurked above. Mista Muskwa—the Great Bear (Big Dipper)—embodies greed and imbalance. The bear demanded constant gifts, becoming violent if refused. Eventually, seven birds--Tepakoop Pinesisuk—were sent to restore harmony. They chased the bear until he fled to the sky, where the chase continues each autumn, the constellation “running" along the horizon. It’s a story of imbalance, of consequences, and of community coming together to restore harmony.
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​‘Edwin Bighetty. Mista Muskwa: Big Dipper’ from ‘Tipiskawi Kisik: Night Sky Star Stories’
These stories weave together, offering layered perspectives. The dogs are our guardians, while the bear reminds us of the dangers of greed—and the power of collective action. The event summarized these narratives; the book deepened them with details.

​Achakos Ininewuk: The Star People

One of the most memorable teachings I heard that night and one that I recall often when looking up at the night sky is that we are Star People. Carl Sagan’s words, “we are made of star-stuff”, echoed in Indigenous wisdom. At creation, Misewa (everything that is) received a spark--Achak—from the Creator, animating all things. Thus, stones (Assiniuk) are alive, animate with spirit. Death becomes transformation, not termination.
Our ancestors arrived via Achakos Iskwew (Star Woman), who descended through a hole in the sky marked by the Pleiades--Pakone Kisik—and chose to come to Aski (Earth). I look up at them now not just as a glittering cluster, but as a portal. A reminder of the indigenous arrival story.
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​‘Edwin Bighetty. Atchakos Ahkoop: Pleiades’ from ‘Tipiskawi Kisik: Night Sky Star Stories’

Kiwtin: The Going Home Star

Polaris—the North Star—is called Kiwtin, the Going Home Star. Fixed in the sky, it guides those lost or returning home. The two bowl stars in the Big Dipper (Great Bear’s hind legs) consistently point toward it, an ancient navigational aid. Kiwtin is a  foundational reference point for navigating the night sky.

Orion & The Sweat Lodge: Matootisan

Orion, known to many as the Hunter, carries another powerful Indigenous story. Orion is Mistapew, a giant spirit-being resembling a Sasquatch or Sa’be, embodying strength and honesty—one of the Seven Sacred Teachings. In ‘Tipiskawi Kisik’, the tale unfolds through Tikoom, whose seven uncles disappeared during a hunting trip, captured by a giant trading in spirits. Their spirits were placed in seven stones, foundational to the first sweat lodge--Matootisan. Each stone holds a sacred teaching, a fragment of spirit, and a tale passed down generations.
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​‘Edwin Bighetty. Mistapew: Orion’ from ‘Tipiskawi Kisik: Night Sky Star Stories’

Guided by the Seven Teachings

Throughout the evening the Seven Sacred Teachings emerged repeatedly:
  • Respect
  • Truth
  • Wisdom
  • Honesty
  • Courage
  • Love
  • Humility
These teachings are reflected in the stories—whether it’s the loyalty of the dogs, the danger of unchecked ego in the bear, or the wisdom of using the stars as a compass.
I had first encountered these teachings while walking the Bimose Kinoomagewnan (Walk of Teachings) trail in Pukaskwa National Park. Seeing them mirrored in the sky makes them feel even more eternal. As above, so below.
Seven Sacred Teachings: Respect, Truth, Wisdom, Honesty, Courage, Love & Humility
​Photos taken by me in July 2022

Final Reflections

​From ‘Storytelling of the Stars’ and revisiting ‘Tipiskawi Kisik’, I’m reminded that astronomy transcends charts and data. It is ancestral, emotional, and spiritual.
​Constellations are not mere configurations of light. They are maps of memory. Guardians of wisdom. Bridges between worlds. 
​And as we lift our eyes to the sky, we are reminded:
​We are not separate from the stars.
​We are made of them.

Sources:
  • Wilfred Buck, ‘Tipiskawi Kisik: Night Sky Star Stories’
  • Rockford McKay & Dr. Phil Ferguson, ‘Storytelling of the Stars’ presentation, Lockhart Planetarium, March 27, 2025.
Note: These stories are shared as I heard, read, and remembered them. Your understanding or stories might differ, or my interpretations might not fully match your own. I welcome corrections, perspectives, or stories via email or comments below.
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Two Suns at Dawn: The Rare Magic of a Partial Solar Eclipse Sunrise

2/4/2025

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This past weekend, something rare and quietly extraordinary unfolded in the skies above northeastern North America: a partial solar eclipse at sunrise — and with it, the eerie illusion of a ‘double sunrise’ or ‘devil’s horns’. 
Picture
​​​​​​​​Generated with DALL·E.
​For those who were in just the right spot — places like eastern Maine, coastal New Brunswick, or the Gaspé Peninsula in Quebec — the Sun didn’t rise as a single glowing disc. Instead, two crescent-shaped horns of sunlight crept above the horizon, side by side, separated by the shadow of the Moon. This fleeting illusion is called a ‘double sunrise’, and it’s the result of a rare alignment where a partial solar eclipse begins (or reaches its peak) at the exact moment the Sun is rising.

So what’s actually happening?

​A partial solar eclipse occurs when the Moon passes between Earth and the Sun but doesn’t cover it completely. Instead, it obscures only a portion of the Sun’s face. When this happens at sunrise, the Sun emerges with a large chunk ‘missing’. And in cases like March 29, 2025 — when the Moon covered 80–90% of the Sun in those regions — only the far edges of the Sun remained visible, appearing like two separate horns of light on the horizon. 

Why is it so rare?

Because for this to happen:
  • A partial solar eclipse must occur,
  • It must align precisely with sunrise,
  • And you have to be in a very specific region of the world to witness it.
When all three conditions align, you get a visual phenomenon that feels both celestial and surreal — a kind of cosmic sleight of hand.
Photos shared on social media captured the moment brilliantly. The first image below, taken by Fabrizio Melandri in Monticello, Maine, shows the textbook ‘devil’s horns’ silhouette — sharp, symmetrical, and surreal. The second set of images, taken by Colleen Logan on the Atlantic coast of Canada, shows the Sun’s eerie progression through cloud-fringed treetops.
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​‘Horns of fire’ rising over Maine – captured by Fabrizio Melandri.
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Images captured by Colleen Logan from the Atlantic coast of Canada.
For more about how solar eclipses work — and where this one was visible — check out:
  • NASA’s Eclipse Portal
  • NASA SVS Map of the March 29, 2025 Partial Solar Eclipse
​If you missed it, don’t worry — part of the joy in these events is knowing how rare and serendipitous they are. And when the skies do offer up a gift like this, it reminds us to keep looking up.

Clear skies, friends.

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Echoes of a Dying Star: Exploring a Supernova Through AI and Storytelling

19/2/2025

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I've been playing around with ChatGPT for a while now, experimenting with its ability to generate and refine stories, especially those rooted in science. One of my latest projects was crafting a science fiction short story that balances scientific accuracy with a sense of curiosity and wonder—something in the flavour of Carl Sagan.
Picture
​​​​​​​Generated with DALL·E.

The process? A mix of notes, structured planning, AI-assisted brainstorming, research, and a lot of tweaking:
  • Story Concept & Playtime: I started with a basic idea—a Type Ia supernova unfolding across different cosmic distances—and played around with ChatGPT, bouncing ideas back and forth.
  • Academic Meets Creative: I had ChatGPT analyze and draw from one of my old university astronomy papers to reinforce the scientific foundation of the story.
  • Outlining the Narrative: I structured the story into five chapters, each set at a different vantage point, from the doomed white dwarf, to an autonomous research probe, to a crewed space ship, to the Earth, to the Andromeda Galaxy. One focus was scientific knowledge, but another was evoking that deep sense of cosmic wonder.
  • Experimenting with ChatGPT Models: I tested different inputs, played around with phrasing, and fine-tuned the best output before mixing in my own edits.

Final Touches: Bringing the Story to Life with Video & Music

To enhance the experience, I experimented with Sora to create short videos for each chapter, the title screen, and ending. I compiled these into videos for the story, trying two different approaches:
  1. Text-Based Generation: I copy-pasted the chapter text directly into Sora and went with whatever it generated.
  2. Prompt-Based Generation: I asked ChatGPT o3-mini to come up with suitable Sora prompts—one for each chapter, the title screen, and ending. I then put those prompts into Sora with minimal editing. This worked somewhat better but Sora still had issues generating text correctly.
Both videos turned out alright, but still left much to be desired. Sora has potential, but there’s plenty of room for improvement—at least for us humble ChatGPT Plus users.
On top of that, I wanted an atmospheric soundtrack, so I used ChatGPT to craft a dungeon synth instrumental prompt for Suno. I’ve been really into dungeon synth lately, and this story felt like the perfect inspiration for something melancholic, immersive, and cosmic. 
Suno generated two versions:
  • Luminous Shadows - Version 1
  • Luminous Shadows - Version 2
​After all that experimenting, refining, and assembling, here’s the final outcome: ‘Echoes of a Dying Star’—a story that explores the cosmic scale of a supernova through the perspectives of a doomed autonomous research probe, a distant spaceship, Earth-based observers, and even the Andromeda Galaxy.
Check out the story, and watch the accompanying videos below!

Echoes of a Dying Star

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​Echoes of a Dying Star - Video 1


Echoes of a Dying Star - Video 2


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