Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? In a paper ...

We all know Mars is called “The Red Planet,” but have you ever stopped to wonder—why is it red? The classic joke explanation ...

SETI Institute In the News This month at the SETI Institute brought exciting news about research and innovations that expand our understanding of the universe and bring us closer to answering one of ...