There are a lot of Sun-like stars in the universe. Are they as identical as the name suggests, or are there important differences between them?
Let’s take a trip back to 1979 to check out the first signs of an ocean hidden deep beneath Europa’s icy shell.
Could Gaia’s immense catalog of stellar positions help us find extraterrestrial intelligence?
Globular clusters in the Milky Way are shedding their stars. How can we tell when this process began?
Earth life has a definite preference for particular kinds of molecules. Where did life get its taste for left-handed amino acids?