Vera C. Rubin Observatory Operations and Discoveries
The Vera C. Rubin Observatory's Simonyi Survey Telescope is expected to play a significant role in detecting rare planetary collision events, such as one observed on March 11, 2026, approximately 11,000 light-years away, once its Legacy Survey of Space and Time begins later in 2026. As of March 10, 2026, NSF NOIRLab successfully demonstrated its system for following up on alerts generated by the observatory, which launched its real-time alert system on February 24, 2026, issuing approximately 800,000 alerts for astronomical events. The observatory, formally handed over to the Operations team on October 25, 2025, and commencing its decade-long mission on or before October 13, 2025, has already discovered the fastest-spinning asteroid ever recorded, 2025 MN45, measuring about 710 meters across and rotating in under two minutes, and a 170,000 light-year long stream of stars around galaxy Messier 61. The Simonyi Survey Telescope was dedicated on October 4, 2024, honoring the Simonyi family's philanthropic contributions, and the observatory is expected to discover 20 billion new galaxies over its mission.
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Track this story2026
6 updates
2026
6 updatesAstronomers may have observed a rare planetary collision event approximately 11,000 light-years away, causing a star to flicker. The Vera C. Rubin Observatory's Simonyi Survey Telescope is expected to play a significant role in detecting similar future events once its Legacy Survey of Space and Time begins later in 2026.
via rubinobservatory.org·rubinobservatory.org·rubinobservatory.org
NSF NOIRLab has successfully demonstrated its system for following up on alerts generated by the Vera C. Rubin Observatory. This system utilizes multiple software tools and a global telescope network to enable rapid follow-up observations of transient objects. During a recent test, the team followed up on 18 alerts flagged as likely supernovae.
via Vera C. Rubin Observatory·rubinobservatory.org·rubinobservatory.org
The Vera C. Rubin Observatory launched its real-time alert system, issuing approximately 800,000 alerts on February 24, 2026, for astronomical events such as new asteroids and supernovae. This system is a significant step as the observatory prepares for its 10-year Legacy Survey of Space and Time (LSST) later in 2026.
via rubinobservatory.org·lsst.community.org·rubinobservatory.org
The Vera Rubin Observatory has captured images of the interstellar comet 3I/ATLAS between June 21 and July 19, 2025, ten days before its official discovery on July 1, 2025. These images showcase the comet's evolution as it approached the Sun.
Astronomers analyzing data from the Vera C. Rubin Observatory have discovered the fastest-spinning asteroid ever recorded, measuring over half a kilometer in diameter. The Simonyi Survey Telescope was dedicated on October 4, 2024, honoring the Simonyi family's philanthropic contributions. The observatory is expected to discover 20 billion new galaxies over its decade-long mission.
The first peer-reviewed paper utilizing data from the LSST Camera's pre-survey observations was published, identifying a record-breaking asteroid.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2025
11 updates
2025
11 updatesThe Vera C. Rubin Observatory has discovered a stream of stars around galaxy Messier 61, measuring approximately 170,000 light-years long. Additionally, the observatory identified the fastest-spinning large asteroid ever found, designated 2025 MN45, which measures about 710 meters across and rotates in under two minutes. These discoveries were made using data from the observatory's Simonyi Survey Telescope.
The observatory was formally handed over from the Construction team to the Operations team.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
The construction phase of the Rubin Observatory formally concluded, achieving substantial completion.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
The Vera C. Rubin Observatory commenced its decade-long mission to scan the entire night sky every three days on or before October 13, 2025, utilizing its Simonyi Survey Telescope and LSST Camera.
via space.com
The Rubin Observatory announced a planned four-week construction and operations engineering downtime starting September 22, 2025, during which the Simonyi Survey Telescope would not operate at night to allow for complex daytime engineering tasks.
via lsst.org
The Indiana University Kokomo Observatory is scheduled to host its first free open house of the academic year on September 14, 2025, which will include an overview and early results from the Vera C. Rubin Observatory.
via news.iu.edu
The Vera C. Rubin Observatory has released its first images of the cosmos, marking the beginning of its 10-year mission to scan the Southern Hemisphere's night sky. During pre-survey observations, astronomers also discovered the fastest-spinning asteroid ever recorded, which is over half a kilometer in diameter and rotates every two minutes.
The Vera C. Rubin Observatory has released its first deep-space images captured by its 3,200-megapixel camera, the largest on Earth. Located in Chile, the observatory is expected to discover 20 billion new galaxies over the next decade through its Legacy Survey of Space and Time (LSST) program.
The Vera C. Rubin Observatory released its first imagery on June 23, 2025, showcasing millions of galaxies and stars from test observations. The observatory began its decade-long scientific survey on October 13, 2025, using the world's largest digital camera to scan the entire night sky every three days.
via National Science Foundation·National Geographic·Space.com
The observatory released its 'First Light' images to the public, marking a significant milestone in its commissioning phase.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
The completed LSST Camera was successfully installed on the telescope at the observatory.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2024
4 updates
2024
4 updatesThe Simonyi Survey Telescope was dedicated on October 4, 2024, at the NSF–DOE Vera C. Rubin Observatory, acknowledging the significant philanthropic contributions of Charles and Lisa Simonyi.
The Commissioning Camera (ComCam) achieved its 'first photon,' capturing its initial images.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
The 3.5-meter secondary mirror was successfully installed on the Simonyi Survey Telescope.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
The 3.2-gigapixel LSST Camera, the world's largest digital camera for astronomy, was completed.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2021
1 update
2021
1 updateThe National Science Board (NSB) approved a revised Total Project Cost for the observatory, accounting for COVID-19 related delays.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2020
1 update
2020
1 updateThe new name, Vera C. Rubin Observatory, was publicly announced at the American Astronomical Society winter meeting.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2019
2 updates
2019
2 updatesThe renaming of the observatory to Vera C. Rubin Observatory was enacted into U.S. law.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
An initiative to rename the observatory in honor of astronomer Vera C. Rubin was proposed by U.S. Representatives.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2018
1 update
2018
1 updateThe telescope's mirrors and mount components started arriving at the Cerro Pachón construction site in Chile.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2015
3 updates
2015
3 updatesSite construction officially commenced on Cerro Pachón, Chile.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
The final polishing of the primary/tertiary mirror (M1M3) was completed.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
Construction of the 3.2-gigapixel LSST Camera began at SLAC National Accelerator Laboratory.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2014
1 update
2014
1 updateOfficial construction of the project began, following authorization of NSF funding.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2010
1 update
2010
1 updateThe LSST was ranked as the top-priority large ground-based project in the 2010 Astrophysics Decadal Survey.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2008
1 update
2008
1 updateFabrication of the 8.4-meter primary/tertiary mirror (M1M3) began at the Steward Observatory Mirror Lab.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2007
1 update
2007
1 updateSignificant private funding, including contributions from software billionaires Charles Simonyi and Bill Gates, was pledged to support the development of the telescope's mirrors.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2003
1 update
2003
1 updateThe LSST Corporation was established as a non-profit entity to support the project's development.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
2001
1 update
2001
1 updateThe concept of the Large-Aperture Synoptic Survey Telescope (later LSST) was recommended as a major initiative in the 'Astronomy and Astrophysics in the New Millennium' decadal report.
via noirlab.edu·lsst.org·space.com·noirlab.edu·en.wikipedia.org
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