Gemini Observatory

In this timelapse video, @Geminiobs North creates artificial guide stars above Earth. By tracking how those stars shimmer, the telescope’s adaptive optics system adjusts its mirrors to cancel it out in real time. 🎥: NOIRLab/NSF/AURA/T. Matsopoulos

@NOIRLabAstro @VRubinObs Amazing! 🥳

The NSF–DOE @VRubinObs has released its 1st alerts of detected changes in the night sky, including new asteroids & exploding stars! This is the start of a system expected to generate up to 7M alerts per night🚨 🔗 ow.ly/EFxH50Ym1I7 📹 NSF–DOE @VRubinObs/NOIRLab/SLAC/AURA

We’ve got #Olympics spirit at Gemini North, where snow and ice briefly closed the observatory this past week. This 📷 from Maunakea in Hawai’i was taken from the neighboring Canada-France-Hawaii Telescope. #MilanoCortina2026 📷 Canada France Hawaii Telescope Corporation

Our 22nd Journey Through the Universe Week was a whirlwind of fun! 🤩🔭Mahalo to our 60+ Journey Educators and mahalo nui loa to our 100+ Hilo-Waiākea teachers who invited us into their classrooms 😍 🔗 bit.ly/4clvQmC 📸 @GeminiObs/NOIRLab/NSF/AURA/J.Pollard

Comet C/2025 K1 (ATLAS) breaking apart! ☄️ On 11 November and 6 December 2025, the comet soared in the skies above Maunakea, Hawai‘i, where Gemini North captured it in action! 📷 @GeminiObs/NOIRLab/NSF/AURA/B. Bolin Processing: J. Miller & M. Rodriguez, T.A. Rector, M. Zamani

For planetary systems, the excitement doesn’t end after they’re formed! Gemini South, ½ of @GeminiObs, just discovered a cloud of metallic winds orbiting a mystery object the size of multiple Jupiters. 🤔 🔗 ow.ly/kZPB50Y0PFN 📸 @GeminiObs/NOIRLab/NSF/AURA/J. da Silva

Welcome to day one of #AAS247! Come meet our amazing team and find out what exciting projects we're working on at @GeminiObs, @Cerrotololo, @KittPeakNatObs, CSDC, and @VRubinObs.

We're excited to see all of you at #AAS247! For the latest scoop on our science talks, open house, iposters, demos, swag & more - stay tuned with us on @NOIRLabScience! Daily updates coming your way! #Astronomy

☄️💚 It’s back, and glowing green! After weeks behind the Sun, Comet 3I/ATLAS, the 3rd confirmed interstellar object, has returned to view. @Geminiobs North captured new multicolor images during a live Shadow the Scientists session. 📷: @GeminiObs/NOIRLab/NSF/AURA/B. Bolin

Comet Lemmon ((C/2025 A6) streaks across the night sky above @Geminiobs North on Maunakea in this stunning Image of the Week. Captured on 12 November 2025, the comet glows against the Milky Way, green airglow, and the lights of Hawai‘i Island. 📷GeminiObs/NOIRLab/NSF/AURA

Here’s a 2025 science moment you loved! Release #4 Say it 3 times: Betelgeuse, Betelgeuse, Betelgeuse Astronomers using @Geminiobs North found a hidden companion star orbiting inside Betelgeuse’s extended atmosphere, the first close-in companion ever seen around a supergiant star

What a YEAR! This year, we’ve had incredible scientific news! Ranking #5:New image of interstellar Comet 3I/ATLAS! ☄️ In this image taken from Gemini South, you can see the growing tail of the comet and the glowing coma. 📷GeminiObs/NOIRLab/NSF/AURA/Shadow the Scientist

Ua ʻŌhiʻa Lani, or "Heavenly ʻŌhiʻa Rains", is the name of this image, chosen by four Project Hōkūlani Gemini interns to commemorate the 25th anniversary of the @NOIRLabAstro International Gemini Observatory @GeminiObs. Read more: bit.ly/Ua-Ohia-Lani

How do you operate an 8.1-meter telescope? 🤔 For @Geminiobs South’s 25th anniversary, we’re taking you inside the control room, where operators and astronomers work together to make every observation possible. #GeminiSouth25 #GeminiObservatory #Astronomy #Chile

What Makes the @GeminiObs International Today? 🌎 To celebrate 25 years of the International @GeminiObs, we’re launching a two-part Blog series! Today, we’re exploring the global contributions made to make this monumental astronomical project happen. 🔗noirlab.edu/public/es/blog…

NOIRLab: Gemini South Celebrates 25th Anniversary With Stunning Snapshot of the Butterfly Nebula noirlab.edu/public/news/no…

@SpaceTelescope Thank you dear friends!

Happy anniversary to the Gemini South Observatory! 🦋 🔭

Happy Thanksgiving to all those who celebrate! 🦃 Today (and every day), we’re grateful for our scientists, engineers, construction workers, educators, guides, docents, communications team, interns, collaborators, and everyone else in between who make NSF NOIRLab what it is!

@Geminiobs South celebrates 25 years! 🎉 Astronomer Rodolfo Angeloni gives us an inside look at how this 8.1-meter giant collects light from across the Universe and turns it into discoveries.

We are celebrating @Geminiobs South's 25th Anniversary with this photo! 🥳 📸 Say hello to NGC 6302, the Butterfly Nebula. NGC 6302 is a bipolar planetary nebula that lies between 2500 and 3800 light-years away in the constellation Scorpius. 🔭🎂 📸 GeminiObs/NOIRLab/NSF/AURA