Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky this week.

It was a beautiful summer evening in Western Colorado. The Sun had just set and our bright sister planet was just starting to ...

Meet the author: Dr. Phil Plait is an astronomer, author, and science communicator with a PhD in astronomy at the University of Virginia. He has written four books on astronomy and consulted on space ...

It's another blustery week under busy celestial winds. The planets suggest potentially angry waters and strong emotions, ...