As space exploration pushes further into the unknown, new challenges are emerging, particularly for long-duration missions.

The International Space Station is facing a $1 billion budget shortfall – separate from President Donald Trump's plans to ...

Is it easier to fall asleep in low gravity?” and other spaceflight questions, answered by two NASA sleep scientists.

A giant impact crater on the moon may contain primordial pieces of the lunar mantle and remnants of an ancient magma ocean, ...

Anne McClain and Nichole Ayers achieved most of their planned tasks on today's (May 1) 5-hour, 44-minute extravehicular ...

Two NASA astronauts have completed a nearly six hour long spacewalk to maintenance and upgrades on the International Space ...

NASA astronauts Anne McClain and Nichole Ayers will perform the fifth all-female spacewalk to prepare the space station for ...

McClain, an Army colonel and helicopter pilot, should have taken part in the first all-female spacewalk in 2019, but there ...

The fish would grow in tanks filled with water extracted from ice found at the Moon’s poles, regions permanently shielded ...

The three Chinese astronauts that served as the Shenzhou 19 crew returned to Earth Wednesday after a 183-day long mission ...

Three Chinese astronauts have landed back on Earth after six months on China’s space station. The crew’s landing module came ...