Asteroid’s Comet-Like Tail Is Not Made Of Dust, Solar Observatories Reveal
By Vanessa Thomas
A weird asteroid has just gotten a little weirder.
We have known for a while that asteroid 3200 Phaethon acts like a comet. It brightens and forms a tail when it’s near the Sun, and it is the source of the annual Geminid meteor shower, even though comets are responsible for most meteor showers....
