Watch as NASA astronauts Christina Koch and Jessica Meir prepare tools necessary for their spacewalk duties outside of the International Space Station on Friday, October 18, 2019.

This artist's concept animation depicts key events of NASA's Mars Science Laboratory mission, which launched November 26, 2011 and it is schedule to land in Mars on August 6, 2012.

The goal of 3-D printing is to take this capability to microgravity for use on the International Space Station. In space, whatever astronauts have available on orbit is what they have to use -- but just like on Earth, parts break or get lost. When that happens, there's a wait for replacement parts, ...

NASA Chief Just Announced A Serious WARNING About Betelgeuse Star Explosion! Betelgeuse is one of the brightest stars that you can see in the night sky, and its eventual explosion is an event that NASA has been dreading for a while. Located on the shoulder of Orion, Betelgeuse is fast approaching t...

Space shuttle Atlantis lands at Kennedy following the successful STS-132 mission to the International Space Station.

Have you ever wondered why some telescopes are launched into space while others are built on remote mountain tops? What is actually the best for astronomy? Here we provide a ringside view of the fight for the elusive photons from deep space - is it a battle of the telescope giants?

NASA reported that an asteroid is headed toward Earth one day before U.S. Election Day 2020. Although the chances of an impact are less than 1 percent. Scientists labeled the asteroid 2018VP1, and data reveals its diameter is 0.002 kilometers, or about 6.5 feet. The celestial object was first disco...

Mars is a cold and barren desert today, but scientists think that in the ancient past it was warm and wet. The loss of the early Martian atmosphere may have led to this dramatic change, and one of the prime suspects is the solar wind. Unlike Earth, Mars lacks a global magnetic field to deflect the s

Highlights from a Sept. 28, 2015, briefing with NASA officials discussing the strongest evidence yet that liquid water flows intermittently on present-day Mars.

For the first time in history, a recorded song has been beamed back to Earth from another planet. Students, special guests and news media gathered at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., on Tuesday, Aug. 28, 2012, to hear "Reach for the Stars" by musician will.i.am after it wa...