There may be tens of BILLIONS of small (10 - 100 meter) asteroids out in the main belt past Mars, but they're too small to be seen from with our telescopes… until now. Astronomers used JWST data in a unique way to find over 130 of them!


Bad Astronomy Newsletter
Hundreds of small asteroids found in the main belt using JWST
Astronomers used a new technique to find the building-sized rocks, the smallest ever seen at that distance








