Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Four astronauts ...

After a year spent listening to the constant hum of the complicated machinery that keeps the International Space Station livable, astronaut Frank Rubio is looking forward to some silence on Earth.

The US space agency is asking aerospace suppliers to design a new orbital craft that could be used to perform a controlled de ...

Ax-2 is carrying a Saudi Arabian woman to space for the first time ever. CAPE CANAVERAL, Florida — The second private ...

NASA astronaut Frank Rubio broke the American record for single longest trip to space as he approaches his return trip home ...

Because of the Soyuz leak, Rubio has now become the NASA astronaut with the longest continuous period of time in space. Last ...

Axiom Space on Tuesday announced its third private mission to the International Space Station will send up three astronauts ...

Astronaut Frank Rubio marked a year in space on Thursday, September 21, NASA said, nearing the end of a mission to the ...

A NASA astronaut on her inaugural spaceflight and two cosmonauts launched aboard a Russian Soyuz spacecraft toward the ...

Rubio has spent nearly 350 days on board the space station and is soon set to break the record for the longest time a US astronaut has spent in microgravity. NASA astronaut Mark Vande Hei set the ...

NASA astronaut Frank Rubio broke the American record for single longest trip to space as he approaches his return trip home ...

Four astronauts concluded their six-month stay aboard the International Space Station on Sunday and are heading for a ...