Rubin Observatory Launches 10-Year LSST Survey With 3,200-Megapixel Camera

Q: With a giant asteroid flyby in 2029, will the Rubin Observatory's new sky map be our key to planetary survival?

No. The Rubin Observatory will strengthen planetary defense, but it is not the key to surviving the 2029 Apophis flyby because Apophis is not expected to hit Earth. Apophis, about 370 meters wide, will make a very close pass on April 13, 2029, closer than geostationary satellites. Early impact fears after its 2004 discovery were eliminated by later observations and radar tracking. Scientists now treat the flyby as a rare research opportunity, not an impact emergency. Rubin’s importance is broader and long-term. Its 10-year Legacy Survey of Space and Time will scan the southern sky nightly with a 3,200-megapixel camera, detecting millions of changes and vastly expanding the catalog of asteroids and other moving objects. Researchers expect it to identify 80% to 90% of potentially hazardous asteroids larger than 140 meters, a major gain for early warning. Its value is not just finding more objects. Rubin is also expected to improve the accuracy of asteroid positions and orbits by correcting biases in existing sky catalogs, which directly matters for collision-probability calculations years or decades ahead. That makes future hazard assessments more reliable. Planetary defense, however, depends on a wider system: ground surveys, international warning networks, deflection planning, and dedicated missions such as NASA’s NEO Surveyor and the proven DART approach. Rubin will be one of the most powerful new tools in that system, but not the deciding factor for Apophis in 2029.

3 articles · Updated · Livescience.com · Jul 3

Chile’s Vera C. Rubin Observatory said its Legacy Survey of Space and Time began June 30, starting a 10-year scan of the southern sky with the world’s largest digital camera.
Thousands of 30-second exposures each night will build a time-lapse map of the universe, with the system expected to flag 7 million to 8 million changing objects nightly and publish alerts within minutes.
Scientists say the data stream could sharpen studies of dark matter, dark energy, supernovas, comets and potentially hazardous asteroids, while also surfacing unknown transient phenomena.
Technical bugs are still being worked through, and ultra-bright commercial satellites remain a major threat because they could wash out the dark skies the survey depends on.
Over the next few months, Rubin plans to expand sky coverage and improve image quality as it ramps toward tens of trillions of observations over the decade.

Sources

Livescience.com10h ago

Vera C. Rubin Observatory's LSST Begins 10-Year Universe Survey in Chile

Gizmodo10h ago

Rubin Observatory Begins Its 10-Year Survey of the Universe

Mashable11h ago

Rubin Observatory begins 10-year sky survey with stunning image | Mashable

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With a giant asteroid flyby in 2029, will the Rubin Observatory's new sky map be our key to planetary survival?

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The Vera C. Rubin Observatory’s Legacy Survey of Space and Time: Unveiling the Dynamic Universe with 10 Terabytes of Data Per Night

Overview

The Vera C. Rubin Observatory began its Legacy Survey of Space and Time (LSST) on June 30, 2026, marking the start of a new era in cosmic discovery. Even before the official launch, the observatory showcased its power by identifying over 11,000 new asteroids, 33 near-Earth objects, and 380 trans-Neptunian objects. These early results highlight the observatory’s efficiency and hint at the vast data and insights the full LSST will provide. Designed to map the universe with unmatched detail, the LSST promises to revolutionize our understanding of the cosmos over the next decade.

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