W. M. Keck Observatory

W. M. Keck Observatory operates among the most scientifically impactful telescopes on Earth on Maunakea, Hawai'i.

[W. M. Keck Observatory @keckobservatory]

Every night of science begins long before the sun sets.

Meet @keckobservatory Mechanical Engineer Ellie O'Brien, whose care for this place—and for those around her—helps make each night of science possible.

🎥 Created in partnership with Hawaiʻi-based By Confluence.

[W. M. Keck Observatory @keckobservatory]

Astronomers using the @keckobservatory on Maunakea, Hawaiʻi Island, have helped to confirm two-thirds (21 of 31) of the most ancient quasars from the @ESA_Euclid mission, including two of the most distant ever observed.

🔗learn more: https://t.co/YiqQoDeDTB

📷 animation credit W. M. Keck Observatory / Adam Makarenko

[W. M. Keck Observatory @keckobservatory]

Every discovery has a story.

We partnered with Hawaiʻi-based production company By Confluence to create two films celebrating the people of Keck Observatory and their connection to Maunakea. The result is a stellar success. ✨

🎥 Watch the trailer. Stay tuned for the full films coming later this week.

@keckobservatory
#astronomy #hawaii #keckobservatory

https://t.co/pmrIGds3bS

[W. M. Keck Observatory @keckobservatory]

This summer, @keckobservatory is proud to welcome two outstanding students, Edinn Kitagawa and Elizabeth Young, as participants in the renowned Akamai Workforce Initiative. Learn more about these two superstars: https://t.co/T8ipKVwTa4

[W. M. Keck Observatory @keckobservatory]

Join the team behind world-changing discoveries at the W. M. Keck Observatory

We're hiring:
- Financial Planning & Analysis Manager
- Infrastructure Technician
- Mechanical Engineer I
- Mechanical Engineer II

Every role advances the frontiers of astronomy , guided by our values of stewardship and service.

Ready to learn more? https://t.co/dP6vFBtHEQ

@keckobservatory
#NowHiring #EngineeringJobs #FinanceJobs #STEMCareers #keckobservatory

[W. M. Keck Observatory @keckobservatory]

THIS JUST IN: A @YaleAstronomy team using @keckobservatory discover 3rd dark matter-free galaxy, part of a strange linear structure that may have formed during a violent collision between galaxies. Get the scoop on DF9 👉 https://t.co/nOAn95cknI

[W. M. Keck Observatory @keckobservatory]

From Akamai intern to inaugural Kamaʻāina Pathways intern. 🌟

Welcome back to Keck, Jake K. Taylor! We're excited to launch this new opportunity for Hawaiʻi-rooted students.

Mahalo to the generous donor ʻohana who made it possible.

🔗https://t.co/8JWReec0Kl

[W. M. Keck Observatory @keckobservatory]

@The_Gruber_Fdtn @UCBerkeley @ucsc Congratulations, Alex, Stan and Ken'ichi! 👏👏👏

[W. M. Keck Observatory @keckobservatory]

Observer Alex Filippenko has been named a co-recipient of the 2026 Gruber Cosmology Prize alongside fellow Keck observer Stanford E. Woosley and Ken'ichi Nomoto for pioneering work on supernovae, dark energy, and the expanding universe. Ho'omaika'i on this stellar achievement!

🔗https://t.co/Go46J4eDmI

@keckobservatory @ucsc @UCBerkeley @The_Gruber_Fdtn

[W. M. Keck Observatory @keckobservatory]

New study uncovers distinct origins of Uranus’s two outer rings - researchers using @keckobservatory construct first complete spectrum of μ and ν rings, revealing composition and formation history. https://t.co/YOKbbElrFg

[W. M. Keck Observatory @keckobservatory]

From mutual stewardship to major discoveries, our week at #AAS247 was about more than results. It was about people, purpose, and collaboration. 🔗https://t.co/7gUJ7YTrcJ

[W. M. Keck Observatory @keckobservatory]

A hui of Keck staff are back from a whirlwind winter meeting of the American Astronomical Society. From science breakthroughs to collaboration and community, #AAS247 delivered. Already looking ahead: 249th #AAS Meeting | Jan 10–14, 2027 | Salt Lake City
@AAS_Press @AAS_Office

[W. M. Keck Observatory @keckobservatory]

Comin' up on the Hidden Lives of UMGs - Some galaxies shut it down. Others keep it going—and hide the evidence. @UCriversideObserver Observer Wenjun Chang shares the team's findings at #AAS247 🔥 @UCRiverside https://t.co/D4gEyPK54O

[W. M. Keck Observatory @keckobservatory]

Beaming with wonder at this live capture of our laser system, courtesy of the Subaru-Asahi StarCam, streaming 24/7 to inspire the imagination of all https://t.co/befo4Mv0Ru

[W. M. Keck Observatory @keckobservatory]

Attending the #AAS247 meeting in Phoenix? Stop by the Maunakea Observatories booth Booth 212 and talk story. Exhibit Hall is open from 9a-6:30p MT mon-wed, and 9-2 pm on Thurs.

[W. M. Keck Observatory @keckobservatory]

We'll be watching! 🔭
https://t.co/KaYYZk74lG

#keckobservatory #astronomy #3IATLAS

[W. M. Keck Observatory @keckobservatory]

🔭 Happy 1st Light Anniversary to Keck I!
35 yrs ago, w/ only 9/36 mirror segments, Keck I imaged spiral galaxy NGC 1232, proving the impossible could be done. Excited for next 35 yrs of scientific impact! #keckobservatory #astronomy

[W. M. Keck Observatory @keckobservatory]

👏👏👏Hoʻomaikaʻi to Keck observer Kareem El-Badry on being named a 2025 MacArthur Fellow @kjb_astro @Caltech https://t.co/Ci8VyoK425

[W. M. Keck Observatory @keckobservatory]

🌋Episode 34 of the ongoing eruption within Halemaʻumaʻu Crater @Volcanoes_NPS as seen by the Keck Cloud Cam, providing a sense of wonder and appreciation for our place in the universe.🔭💫 #keckobservatory #maunakea #astronomy