{"id":616,"date":"2026-04-19T20:37:00","date_gmt":"2026-04-19T20:37:00","guid":{"rendered":"https:\/\/hyokal.com\/?p=616"},"modified":"2026-04-19T20:37:00","modified_gmt":"2026-04-19T20:37:00","slug":"the-vera-c-rubin-observatory-has-discovered-11000-new-asteroids-and-were-just-getting-started","status":"publish","type":"post","link":"https:\/\/hyokal.com\/?p=616","title":{"rendered":"The Vera C. Rubin Observatory has discovered 11,000 new asteroids, and we’re just getting started."},"content":{"rendered":"

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The Vera C. Rubin Observatory was built with an ambitious purpose in mind. As part of the 10-year Space-Time Heritage Study (LSST), Rubin Observatory will collect approximately 30 petabytes of data. This includes cataloging the solar system, ephemeral objects (such as supernovae and variable stars), and mapping the Milky Way galaxy. Using preliminary data collected by the observatory, scientists have already discovered 11,000 new asteroids in the solar system. These results were confirmed by the International Astronomical Union’s Minor Planet Center (IAU-MPC). <\/p>\n

This is the largest single batch of asteroid discoveries in the past year. The discovery is the result of 1 million observations over a month and a half, covering more than 11,000 new asteroids and more than 80,000 known asteroids. The new data were obtained as part of Rubin’s early optimization studies and are evidence of Rubin’s sophisticated equipment. It also provides a preview of the impact on solar system science after Rubin launches the LSST campaign next year. <\/p>\n

Mario Juric, a faculty member at the University of Washington and Rubin Solar System principal investigator, explained in an official press release:<\/p>\n

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This first major submission after Rubin First Look is just the tip of the iceberg and shows that the observatory is ready. Rubin will unearth in months what previously took years or even decades to uncover. We are beginning to fulfill Rubin’s promise to fundamentally reshape our inventory of the solar system and open the door to discoveries not yet imagined.<\/p>\n<\/blockquote>\n

*A rendering of the interior of the solar system showing the asteroids discovered by Rubin in bright blue-green. Known asteroids are dark blue. Credit: NSF\u2013DOE Vera C. Rubin Observatory\/NSF NOIRLab\/SLAC\/AURA\/R\/NASA\/Goddard\/ESA\/Gaia\/DPAC*<\/p>\n

The dataset includes 33 previously unknown near-Earth objects (NEOs), the largest of which is approximately 500 meters (1640 feet) in diameter. This is especially important given that some NEOs are classified as Potentially Hazardous Objects (PHOs) with the potential to impact the Earth in the future. None of the newly discovered objects pose a threat to Earth. Once fully operational, Rubin is expected to uncover nearly 90,000 new NEOs, nearly double the number of known NEOs longer than 140 meters, or about 70%, some of which may be PHOs. This will make Rubin an essential part of planetary defense.<\/p>\n

The dataset also includes approximately 380 trans-Neptunian objects (TNOs), two of which have very large and elongated orbits. At their farthest points (periapsis), these two objects (tentatively named 2025 LS2 and 2025 MX348) are approximately 1000 times farther from the Sun than Earth is. This puts them among the 30 most distant asteroids known. The newly discovered objects are a significant addition to the 5,000 TNOs discovered over the past 30 years and represent a significant increase in the study of these icy, distant objects.<\/p>\n

Matthew Holman, former MPC director and senior astrophysicist at the Harvard-Smithsonian Center for Astrophysics (CfA), spearheaded work on the TNO discovery pipeline. “Looking for TNOs is like looking for a needle in a haystack. We needed a new algorithmic approach to teach computers to sift through billions of combinations among the millions of flickering light sources in the sky and identify those that are likely to be on distant worlds in our solar system,” he said. <\/p>\n

Holman worked with CfA research scientist Kevin Napier to develop an algorithm that uses Rubin’s data to detect distant Solar System objects. “Such objects offer fascinating explorations of the solar system’s outermost reaches, from learning how planets migrated early in the solar system’s history to whether a previously undiscovered ninth large planet is still out there,” he added. <\/p>\n

\"Orbital Orbital distribution of 11,097 newly discovered asteroids from the NSF-DOE Rubin Observatory’s early optimization survey. Credit: NSF\u2013DOE Vera C. Rubin Observatory\/NSF NOIRLab\/SLAC\/AURA\/R\/NASA\/Goddard\/ESA\/Gaia\/DPAC<\/em>*<\/p>\n

Ali Heinze, a research assistant at the University of Washington, worked with Jacob Kurlander, a graduate student at the University of Washington, to build the software that makes these detections possible. He said:<\/p>\n

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Rubin’s unique observing rhythm required an entirely new software architecture for asteroid discovery. We built it and it worked. In early engineering-quality data alone, Rubin discovered 11,000 asteroids and determined more precise orbits for tens of thousands more. It seems clear that this observatory will revolutionize our knowledge of the asteroid belt.<\/p>\n<\/blockquote>\n

Validation of this large asteroid group by MPC means the entire scientific community can access the data, adjust orbits, and begin analysis immediately. Given that LSST has not yet begun, these findings are just the beginning. Over the course of this 10-year study, scientists expect Rubin to discover this many asteroids every few nights in the first few years. This will triple the search for known asteroids and increase the number of known TNOs by nearly 10 times.<\/p>\n

This discovery was made possible by a unique combination of Rubin’s large mirror, LSST digital camera (the largest ever), and highly sophisticated software. These capabilities and advanced data pipelines enable the detection of faint, fast-moving objects in the solar system. Rubin will be able to survey the sky with roughly six times the sensitivity of most current asteroid hunters, allowing it to detect smaller and more distant objects than ever before. This will improve our understanding of the solar system and its evolutionary history.<\/p>\n

To learn more about newly discovered asteroids and to interact with them virtually, you are encouraged to visit the Rubin Orbitviewer site and Small Body Explorer.<\/p>\n