Suni Williams logged 608 days in space, ranking her second on the list of cumulative time in space by a NASA astronaut.  | World News

For the 1st time in the history of the International Space Station, an astronaut experienced a health issue that required NASA to end a mission early.

What NASA accomplished in the early 1970s is a little-known but truly impressive feat. Instead of putting rockets or robots in space, they put seeds there. Seeds of different trees accompanied astronauts on the Apollo 14 mission in 1971,

NASA finally has a permanent administrator again, but the agency’s long term path is anything but settled. Jared Isaacman arrives with money, experience in commercial spaceflight, and a mandate from President Donald Trump to move faster, yet the core ...

A comet that is likely much, much older than our solar system has spent months traipsing through Earth's cosmic neighborhood. And at long last, NASA has unveiled an unprecedented look at the object, named 3I/ATLAS. And no, it's not an alien spaceship.

NASA’s Goddard Space Flight Center, where iconic missions like the Hubble and James Webb Telescopes were brought to life, has become embroiled in controversy over potential closures. For months, workers, advocates and lawmakers have steadily sounded the ...

After a long summer and fall of uncertainty, private astronaut Jared Isaacman has been renominated to lead NASA, and there appears to be momentum behind getting him confirmed quickly as the space agency’s 15th administrator. It is possible, although far ...

Add Yahoo as a preferred source to see more of our stories on Google. Four astronauts are on the verge of becoming the first humans to venture near the moon in more than half a century since NASA's iconic Apollo era came to an end. As early as February ...

After an unidentified astronaut suffered a medical issue, NASA made the call to return Crew-11 early from the ISS. Here's what we know.

Launched by NASA in 2009, the Kepler space telescope was outfitted with equipment to discover and study Earth-sized planets in the Milky Way galaxy. It was named after the 17th century scientist and astronomer Johannes Kepler, renowned for his laws of ...