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How Rubin Works

Rubin Observatory will revolutionize the way we explore the cosmos. Using the largest camera ever built to repeatedly scan the sky for 10 years, Rubin will produce an ultra-wide, ultra-high-definition, time-lapse view of our Universe. Learn how Rubin works below!

Legacy Survey of Space and Time (LSST)

Rubin Observatory will take hundreds of images of the Southern Hemisphere sky, every night for ten years, for a survey called the Legacy Survey of Space and Time (LSST).

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Powered by innovative technology

Rubin Observatory is packed with innovative technology, from a one-of-a-kind combined primary/tertiary mirror to the largest camera ever built. Explore the technology that makes Rubin science possible.

Explore the technology

The Alert Stream

Rubin will detect millions of changes in the southern sky every night, and issue a world-public alert for each change within minutes, allowing scientists to quickly follow up.

Learn about the Alert Stream

Key Numbers

Primary mirror diameter
8.4
meters
Secondary mirror diameter
3.5
meters
Field of View
3.5º
(10 degrees2)
LSST Camera height
1.65
meters
LSST Camera length
3.65
meters
LSST Camera resolution
3200
Megapixels
Generated data volume
20TB
per night
Stars & galaxies detected
37billion
in total
Number of alerts
10million
per night
More key numbers

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