Passengers would need to endure G-forces during launch and landing and remain strapped in due to low gravity during the ...

Suni Williams and Butch Wilmore only expected to be in space for about a week. But, more than 150 days later, the two NASA ...

Using Einstein’s theory of general relativity, physicists found that clocks on the Moon would run 56 microseconds faster than ...

Unexpected solar activity caused Binar satellites to re-enter early, illustrating challenges of solar weather in low orbit.

Amid media speculations, NASA astronaut Sunita Williams confirms her steady weight and addresses health concerns from the ISS ...

When it comes to space exploration, “I would think that this next [Trump] Administration is going to be a continuation of the ...

British writer Samantha Harvey has won the Booker Prize for fiction with “Orbital,” a short, wonder-filled novel set aboard ...

Voyager 2's visit to Uranus may have left us with the complete wrong impression of the ice giant for nearly 40 years, ...

The astronauts remained tight-lipped about the nature of the medical issue that had left an as-yet-undisclosed crew member ...

Hubble has captured images of star births and deaths, comets crashing into Jupiter's atmosphere and galaxies billions of ...

Sergey Prokopyev pointed out that the fact that US astronauts did land on the Moon "is confirmed by automatic probes and cannot be subjected to doubt" ...

NASA’s Europa Clipper mission risks becoming one of the most expensive and difficult in the history of the space agency. By ...