Space policy experts told U.S. Congress that NASA must consider alternatives to its current plan to return astronauts to the ...

A new study reconsiders the controversial findings of NASA's Viking Mars lander in 1976, which some argue may have shown ...

The race to Mars has intensified, with two major players leading the charge—NASA and SpaceX. NASA, a government-backed agency ...

Trump again called on the United States to send astronauts to Mars in his speech to a joint session of Congress.

But what about crewed missions? In the coming decades, NASA and the Chinese Manned Space Agency (CMS) plan to send astronauts ...

Gravity, or the lack thereof, is another major issue. Thanks to research from the International Space Station, NASA knows ...

Experts weigh in on whether President Donald Trump’s lofty goal of sending humans to Mars and back is feasible during his second term.

As Trump returns to the White House, however, most of those accomplishments are at risk. The budget overruns that hobble NASA ...

Two Mars gravity assists are expected, and NASA astronauts Suni Williams and Butch Wilmore are finally set to come home from an extended stay on the International Space Station. Here are five space ...

NASA's most remarkable achievements include launching Explorer 1 in 1958, the 1969 Apollo 11 moon landing, and the Hubble ...

Intuitive Machines second NASA-backed lunar lander mission will deliver scientific instruments to hunt for water under the ...

Elon Musk has made unfounded claims that two NASA astronauts were left on the space station for "political reasons" after ...