Asteroid's comet-like tail is not made of dust, solar observatories reveal
Greenbelt MD (SPX) Apr 26, 2023
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. Scientists had blamed Phaethon's comet-like behavior on dust escaping from the asteroid as it's