COVID-19 may have messed up school and shut down a lot of entertainment venues. But you can still brighten things up by doing a little stargazing at night, an astronomer says.
Massive, far distant galaxies contain 100 times more gas than we thought possible.
Galaxies are supposed to be the place where new stars are formed. So what causes some to stop this stellar production line?
Extragalactic astrophysicists want to know how and why galaxies stop forming stars, change their shape and fade away. With help from citizen scientists, they're figuring it out.