NASA's Curiosity rover has unearthed compelling evidence of a past carbon cycle on Mars, discovering siderite within Gale Crater's ancient rocks. This finding suggests Mars once possessed a thick ...

But NASA's oldest serving astronaut Don Pettit became a septuagenarian while hurtling toward Earth in a spacecraft to wrap up ...

Don Pettit's birthday "party" brought together Russian recovery teams in Kazakhstan, where it was April 20 (his birthdate).

Following a seven-month stay aboard the International Space Station (ISS), NASA astronaut Don Pettit and two Russian cosmonauts landed safely in Kazakhstan aboard a Soyuz spacecraft on Sunday local ...

New findings from NASA’s Mars rover Curiosity could provide an answer to the mystery of what happened to the planet’s ancient atmosphere and how Mars has evolved over time. Researchers have long ...

Don Pettit's birthday "party" brought together Russian recovery teams in Kazakhstan, where it was April 20 (his birthdate). NASA's oldest active astronaut has redefined traveling "home" for your ...

NASA astronaut Don Pettit celebrates his 70th birthday with a spectacular return from the International Space Station after 220 days in orbit.

NASA’s Curiosity Mars rover captured this 180-deg. view of Mount Sharp’s Gediz Vallis channel, which was likely formed by large floods of water and jumbles of rocks. On the left is a pile of ...

“We have abundant evidence for liquid water flowing on the Martian surface before 3.5 billion years ago or so,” says geochemist Ben Tutolo of the University of Calgary. For those wet ...

A discovery of large carbon deposits on Mars has recently been reported by NASA - and it suggests the planet was once habitable to life. NASA’s Curiosity Rover has collected evidence of a carbon ...