Sunita "Suni" Williams had an unexpectedly long stay at the International Space Station after her capsule malfunctioned.

A four-member crew, including NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore, left the ISS early Tuesday on ...

Butch Wilmore and Suni Williams left the International Space Station after nine months in space, checking out with two other ...

NASA is monitoring a bus-sized asteroid as it makes its closest approach to Earth today, among a group of five space rocks ...

Dolphins surrounded the SpaceX capsule after it landed in the ocean on the NASA astronauts' successful journey home after ...

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A Dragon capsule undocked from the International Space Center early Tuesday, sending NASA astronauts Suni Williams and Butch ...

NASA and SpaceX made another attempt on Friday to send a crew up to the International Space Station (ISS) and begin the ...

It was a homecoming that made everyone – and everything – flip for joy.

A NewsNation exclusive reveals NASA’s high-tech plan to save Earth if an asteroid ever comes barreling toward the planet. The ...

Two NASA astronauts stuck in orbit for nine months finally departed the International Space Station aboard a SpaceX capsule ...

NASA astronauts Suni Williams and Butch Wilmore are expected to return to Earth Tuesday afternoon after more than nine months ...