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Rubin will #CaptureTheCosmos in exquisite detail starting in 2026 🌌 Funded by @NSF and @DOEScience. Para español: https://xitter.gq/t.co/JXSHsXeBwQ

Cerro Pachon, Chile
Joined August 2008
Photo by NSF-DOE Rubin Observatory (@VRubinObs)Photo by NSF-DOE Rubin Observatory (@VRubinObs)Photo by NSF-DOE Rubin Observatory (@VRubinObs)Photo by NSF-DOE Rubin Observatory (@VRubinObs)Photo by NSF-DOE Rubin Observatory (@VRubinObs)Photo by NSF-DOE Rubin Observatory (@VRubinObs)Photo by NSF-DOE Rubin Observatory (@VRubinObs)Photo by NSF-DOE Rubin Observatory (@VRubinObs)Photo by NSF-DOE Rubin Observatory (@VRubinObs)Photo by NSF-DOE Rubin Observatory (@VRubinObs)
Meet our Solar System's newest dwarf planet candidate: 2026 ED138! Orbiting past Pluto, scientists found it in NSF–DOE Rubin Observatory data from earlier in 2026. Early analysis suggests it's 600–1500 km across, one of the largest found past Neptune! 🔗 rubinobservatory.org/news/ru…
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We need your help! Galaxies come in all kinds of shapes and sizes. They can be grand spirals, smooth ellipticals, irregular shapes, and everything in between. But computers aren't always good at identifying these kinds of shapes. That's where you come in!
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NSF–DOE Rubin Observatory will observe billions of galaxies over the next 10 years, & volunteers like you will help make sense of what we find. By classifying galaxies, you can help scientists study how galaxies change over time. Join at zooniverse.org/rubin ➡️ Galaxy Zoo!
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We're back on sky!🌌🔭 After time off-sky for planned maintenance and restoration efforts following recent historic storms in Chile, NSF–DOE Rubin Observatory has resumed observations for the Legacy Survey of Space and Time! Onward with the ultimate movie of the cosmos!🎬✨
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“Somewhere, something incredible is waiting to be known.” Happy birthday Carl Sagan, who continues to inspire us to explore our place in the cosmos. At NSF–DOE Rubin Observatory, that spirit is part of all we do, from making discoveries to giving us more reasons to look up💫
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POV: You're NSF–DOE Rubin Observatory's telescope, and this is your view👀✨ As the dome opens, the camera readies, and the telescope turns toward the night sky, billions of stars and galaxies come into view. Quite a view to wake up to every night, if we might say so! 🌌
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Cerro Pachón, tiny planet edition ✨🌎 NSF–DOE Rubin Observatory sits high in the Chilean mountains, beneath wide-open skies and some pretty spectacular views. This 360° perspective gives the mountaintop a whole new look. Not a bad place to call home, if you ask us💙
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A little perspective from the top of our world🏔️ This view in this NSF @NOIRLabAstro #ImageOfTheWeek looks from the top of NSF–DOE Rubin Observatory's dome. In addition to great views, Chile also has incredible infrastructure for supporting astronomy & astrophysics research🌎
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Happy Halloween and #DarkMatterDay!👻 Dark matter is the perfect cosmic mystery: it's invisible…and can pass right through you 👻 While we can't see it directly and we don't know what it's made of, its gravity affects how light bends & how structures across the Universe form.
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While NSF–DOE Rubin Observatory won't see dark matter directly, it WILL capture images of the galaxies that dark matter influences. That data will help scientists study the distribution of all matter across the Universe, both regular and dark.🔭
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Something stirs on the mountain summit... 🎃 The last light before the night shift might look like a villain's lair…NSF–DOE Rubin Observatory waits to scan the void across the southern sky. Happy Halloween Eve… 🌌👀 📷: NSF–DOE Rubin Observatory/NOIRLab/SLAC/AURA
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#ICYMI: our Solar System has a newly-discovered dwarf planet candidate! Meet 2026 ED138, recently revealed by NSF–DOE Rubin Observatory ☄ Let's get to know this new world a little bit, shall we? rubinobservatory.org/news/ru…
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➡️ Distance: ~46 times farther from the Sun than Earth (beyond Pluto!) 📏 Estimated size: 600–1500 km across 🌀 Orbit: Tilted nearly 25° from the plane of the Solar System ⁇ Status: Dwarf planet candidate! (More observations needed to confirm its size)
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🗣️ This is your flight captain speaking 🪶✈️ Keep your seatbelts fastened as we glide across NSF–DOE Rubin Observatory's view of the Seagull Nebula! On your screen, you’ve got a front-row seat to young stars reshaping their stellar neighborhoods. Sit back, relax, and enjoy!🪽
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Look what just flew into view! 🪶✨ Meet the Seagull Nebula as seen by NSF–DOE Rubin Observatory's engineering test camera, ComCam. Two years ago this month, ComCam began on-sky testing — the first time Rubin opened its eye to the sky! 🔗: rubinobservatory.org/news/ru…
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Those glowing pink clouds are hydrogen gas energized by intense radiation from newborn stars. The blue haze shows cosmic dust scattering starlight, while the seagull’s piercing “eye” is a massive young triple-star system known as HD 53367.
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When galaxies collide, their stars usually don't! 🤯 Stars are separated by enormous distances, so most pass right by each other. But mutual gravity during a collision warps the galaxies’ shapes, and their gas clouds *can* collide and potentially trigger new star formation.
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This pair of merging galaxies can be seen in Rubin's view of the COSMOS field ➡️ rubinobservatory.org/gallery… 📸: NSF–DOE Rubin Observatory/NOIRLab/SLAC/AURA
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Zoom in for millions of galaxies 🌌 This is NSF–DOE Rubin Observatory’s view of the Virgo Cluster, a bustling neighborhood of galaxies in various shapes, sizes, & colors. In all, there are over 10 million galaxies in this view 🤯 🎥: NSF–DOE Rubin Observatory/NOIRLab/SLAC/AURA
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Not everything in the Universe glows… This spooky season, we're exploring the darker corners of NSF–DOE Rubin's Observatory's view of the Trifid and Lagoon Nebulae. 🌌 Dark nebulae are dense clouds of gas and dust that block the light from behind, creating inky silhouettes
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🔎 A few spots to find: 1️⃣ Barnard 85: Splits the bright Trifid Nebula into three distinct sections, giving it its name. 2️⃣ Barnard 89: A particularly dark patch of dust lurking among the stars. 3️⃣ Barnard 302 and 303: These dust clouds trace a winding, dragon-like shape🐉
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We recently had a couple of very special visitors at NSF–DOE Rubin Observatory: Andean condors! 🦅 They're some of the largest flying birds on Earth, with wingspans more than 10 feet (3 m). Soaring with air currents, they can go huge distances while barely flapping their wings!
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A night at NSF–DOE Rubin Observatory✨ Beneath the Milky Way, Rubin shares the scene with the Large and Small Magellanic Clouds and the faint red Cobold Nebula. Over the next decade, Rubin will scan this sky over and over, building an ever-deeper view of the changing Universe🌌
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Spooky vibes for spooky month👻🌌 The more you look at this region of NSF–DOE Rubin Observatory’s Ocean of Stars, the more emerges. Wispy galactic cirrus veils stars & distant galaxies, while thousands of spiral galaxies, smooth galaxies, & more lurk in the depths.
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While mountains give us high-altitude dark skies, they disrupt smooth airflow, forcing the air to break into turbulent pockets. This atmospheric jitter is called "seeing." NSF–DOE Rubin Observatory was intentionally built where coastal airflow passes smoothly over the ridge.
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It's October 3rd, so we're wearing pink! 🌸 On Cerro Pachón in Chile, nature puts on its own show during twilight, painting the sky and NSF–DOE Rubin Observatory in glowing pink. We can't really enforce a dress code for the cosmos, but the Chilean skies clearly got the memo.
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