President Donald Trump on Monday celebrated National Astronaut Day on the 64th anniversary of Alan Shepard becoming the first ...

As they returned to the airlock, the Earth below started to put on a lightning show, and Ayers took note, mesmerized. A day ...

The first spacewalk was conducted in 1965, by Russian cosmonaut Alexey Leonov. Nearly 20 years later, cosmonaut Svetlana ...

Chinese astronaut conduct a spherical flame experiment during an orbit to ground space lecture using a match and a candle.

Samantha McClelland, a senior at Forest Hills Northern High School, won the Roger B. Chaffee Scholarship after writing about ...

She was an astronaut, an International Space Station alum, and an aquanaut before she turned 40. It all happened because she ...

The recent all-women spaceflight carried out on Jeff Bezos’s Blue Origin vehicle has raised discussion of who gets to be ...

Is it easier to fall asleep in low gravity?” and other spaceflight questions, answered by two NASA sleep scientists.

It's been more than six decades since Alan Shepard launched on his famous suborbital flight. What would think of the U.S. space program today?

NASA and state officials kicked off Pennsylvania’s Aerospace Day at the Harrisburg School District Tuesday morning by ...

Wilmore, who recently spent more than nine months in space, was a 1981 Mt. Juliet High School graduate with family still in ...

An astronaut has captured jaw-dropping lightning from space. NASA's Nichole Ayers has wowed space fans with her snaps of the ...