Message to Attendees of the 2013 IAA Planetary Defense Conference

A new visualization allows you to experience 500 years of cosmic evolution around the supermassive black hole at the center of the Milky Way.

About 3.5 million years ago, the supermassive black hole at the center of our Milky Way galaxy unleashed an enormous burst of energy.

The International Space Station has two new NASA astronauts after the SpaceX Crew Dragon arrived on Sunday.

NASA astronauts Robert Behnken and Douglas Hurley have joined the International Space Station's Expedition 63 crew.

For the first time, NASA astronauts launched from U.S. soil in a commercially built and operated spacecraft.

Swirling galaxy NGC 3895 would not look out of place on a coffee made by a starry-eyed barista.