Using a vast archive of NASA/ESA Hubble Space Telescope images, astronomers have identified a previously unseen group of small main-belt asteroids. This discovery involved analyzing over 37,000 images collected by Hubble over 19 years, leading to the detection of 1,701 asteroid trails, 1,031 of which had not been cataloged previously. Notably, around 400 of these are smaller than one kilometer i
