Veteran NASA astronaut Don Pettit celebrated his 70th birthday as he returned to Earth from a seven-month stay at the ...

A bold geochemical model reveals that TOI‑270 d, a sub‑Neptune 73 light‑years away, is likely a giant rocky world cloaked in ...

New research suggests ancient Mars may have been warm and wet, with rainfall or snowmelt carving its iconic valleys.

Astronaut Don Pettit, who has been at the International Space Station since September, is set to land Saturday in Kazakhstan ...

Don Pettit is not the oldest Nasa astronaut to ever go into space, but he is the oldest currently serving. At four years past ...

Don Pettit, NASA's oldest ... had more difficulty than most when returning to gravity after a long stay in space. "The very first thing I'm going to do when I get to Earth will probably be to ...

Scientists found complex volcanic rocks in Jezero Crater, hinting at ancient Mars life and geological history potential.

Nasa released stunning nighttime images from the International Space Station, showcasing illuminated regions across the globe ...