The Aurora Borealis, better known as the Northern Lights, shone brightly over Palmer, Alaska, during the night of Monday, November 20 and into the early hours of Tuesday morning. ...

At a Glance December's Full Cold Moon will be the only supermoon of 2017.The celestial body will appear up to 30 percent brighter and up to 14 percent larger than normal. Sunday's supermoon is the first of a trio of supermoons on the way. There will be two in January. The wait is over. The first and only visible supermoonof 2017 is set to adorn the night sky Sunday. December's full moon,dubbed the Full Cold Moon, and up to 14...

This video of a spacewalk will make you want to become an astronaut! ...

The Nov. 29, 2017, photo above shows smoke from the Indonesian island of Bali's Mount Agung volcano billowing over the Bali Sea. (NASA Goddard Space Flight Center) At a Glance NASA satellites spotted smoke from the Indonesian island's erupting Mount Agung volcano. The image shows smoke over the Bali Sea. The peak's eruption prompted authorities to tell 100,000 people to evacuate. An ash cloud billowing from the Indonesian island Bali’s Mount Agung volcano was captured in recently released satellite images...

It's tough to get a pizza delivered to the International Space Stations, so the astronauts had to make their own. ...

Skygazers in Los Angeles get a glimpse of the supermoon, which appears to be bigger and brighter than other full moons. ...

Residents along Florida’s Space Coast will soon hear a series of sonic booms, as NASA conducts tests to try to build a quieter supersonic plane. ...

Scientists detect neutron stars colliding for the very first time -- and find they produce gold, platinum and other heavy elements. ...

Astronomers want to know more about a cucumber-shaped object that came hurtling through our solar system. ...

A look at these awesome sketches is like going back in time. ...

Newly released video shows two Navy pilots encountering a mysterious object. This, as the Pentagon announces it ran a secret UFO investigation program for years. ...

Webcams in a very fitting spot captured a spectacular sight in the night sky over Wisconsin. ...

Residents of several states got quite a view Friday night after the latest SpaceX launch. The launch successfully sent a communications satellite into orbit. The Falcon 9 rocket and its cargo of the Iridium-4 became visible across parts of California, Nevada, and Arizona shortly after blasting off from Vandenberg Air Force Base in California. ...