Recent astronomy news. There are 3 trillion stars in the Milky Way. The Milky way is about 8 times bigger than was thought. We still have a shaky understanding of our own galaxy as refined ...

A new video from the science-focused YouTube channel Kurzgesagt breaks down the different stages of advancement that an alien civilization could theoretically undergo. And each one of the broadly ...

It has been more than sixty years since Dr. Frank Drake (father of the Drake Equation) and his colleagues mounted the first Search for Extraterrestrial Intelligence (SETI) survey. This was known as ...

To measure the level of a civilization’s advancement, the Kardashev scale focuses on the amount of energy that a civilization is able to harness. Obviously, the amount of power available to a ...

Humans love to put labels on pretty much everything — even stuff we know nothing about, like undiscovered alien civilizations. Over 50 years ago, a Soviet astrophysicist invented a power ranking for ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Before you submit an error, please consult our Video Help page. PBS Space Time is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Human civilization has achieved some incredible things ...

Earlier this year, a scan of 100,000 galaxies showed no signs of alien mega-civilizations, dashing the hopes of those longing for a close encounter of the extra-terrestrial kind. A follow-up analysis ...