The final episode of Crash Course Astronomy with Phil Plait is about life in the Universe.

Mercury is the closest planet to the sun. Mercury is the closest planet to the sun. It has no atmosphere and is, as such, covered in craters. It's also incredibly hot but, surprisingly, has water ...

Phil gives the course a send off with a look at some of his favorite topics. Here it is, folks: the end. In our final episode of Crash Course Astronomy, Phil gives the course a send off with a ...

Episodes of the web series Crash Course Astronomy, written and hosted by Phil Plait, is now available in several languages.

Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe isn’t all there is.

Astronomer Jackie Faherty has teamed up with some of the world's leading scientists to create a new Astronomy course that people can take from the safety of their own homes.

If you’re one of the slightly celestially under-primed, get your astronomy juices flowing at some of the many pre-eclipse talks, seminars and star gazes taking place across the mountains.

Against all odds, this new show is going to make you love physics. After the Green brothers ended their much-beloved Crash Course Astronomy series in January, fans wondered what subject the duo ...