The Telescope That Photographs the Entire Sky Every Night — How Rubin Observatory Is Rewriting Astronomy
May 3, 2026Starting in 2026, Rubin Observatory photographs the entire southern sky every 3–4 days and fires off around 100,000 change alerts each night. For the first time, astronomers have a systematic record of everything that flickers, explodes, or moves when no one is watching. Here's what that means for astronomy.