Large and publicly available astronomical archives open up new possibilities to search for and study small solar system objects such as asteroids and comets. A citizen scientist spotted the main-belt asteroid 2001 SE101 passing in front of the Crab Nebula. Image credit: NASA / ESA / Hubble / M. Thévenot, @AstroMelina. In its 32 years of observations, the NASA/ESA Hubble Space Telescope has produced a rich archive of hundreds of thousands of targeted...