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 ...

Billionaire Jared Isaacman, who has been to space twice and is Trump's pick to head NASA, could be one step closer to ...

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

GRAND RAPIDS, MI - When Samantha McClelland first walked into a meeting of the Grand Rapids Amateur Astronomical Association, ...

A Pakistani astronaut will become the first foreign national aboard China’s Tiangong space station, as Beijing steps up space ...

How do you go to the bathroom in space? How that question led one local woman to the International Space Station. New episode ...

NASA's oldest full-time astronaut is back home and doing well a week after wrapping up a seven-month space mission.

Veteran astronaut Don Pettit conducted hundreds of hours of research and captured over half a million photos during his ISS ...

Don Pettit, NASA's oldest active astronaut, addressed his eventful return to Earth. Shortly after the spacecraft touched down ...

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?