Fraser Cain on Nostr: Comets have tails, and asteroids don't, right? The line between comet and asteroid ...

Comets have tails, and asteroids don't, right? The line between comet and asteroid might be blurrier than you think with a rare variety of asteroids that can have comet-like tails. NASA recently recruited 8,000 volunteer citizen scientists to scan through over 430,000 images from the Dark Energy Gamer, searching for examples of "active asteroids." The volunteers identified 15 unknown asteroids with tails, some were even in the main asteroid belt.

https://science.nasa.gov/get-involved/citizen-science/nasa-volunteers-find-fifteen-rare-active-asteroids/