The secret is Rubin's insanely powerful digital camera, the biggest in the world, which scans the southern sky with incredible detail.
Thanks to this tech, the team also found 33 new near-Earth objects and about 380 far-out trans-Neptunian objects (think: icy worlds way past Neptune).
Astrophysicist Matthew Holman said finding these distant objects is like searching for a needle in a field of haystacks—out of millions of flickering sources in the sky.