NASA's oldest active astronaut Don Pettit revealed the real reason why he looked a little peaky upon his return to Earth amid ...

NASA’s deep space ambitions are colliding with a harsh reality—the U.S. is nearly out of plutonium-238, the essential isotope ...

Jaw-dropping pictures shows the giant fuel tank that will help land astronauts on the Moon. Teams at NASA’s Michoud Assembly ...

China's Long March 2F rocket, carrying three astronauts for the Shenzhou 20 manned space mission, lifts off for a space ...

Doctors and public health specialists say they view the administration's actions, such as firings or questioning established research, as an "attack" on science.