Space Exploration

NASA's oldest active astronaut, the 70-year-old Don Pettit, has returned home to Houston after a seven-month stint aboard the International Space Station.

The first 27 satellites of Amazon's Project Kuiper internet constellation are now scheduled to lift off atop an Atlas V rocket on April 28 from Florida.

Last week, scientists announced they found the "strongest evidence yet" of alien life beyond our solar system. However, the scientific community remains skeptical.

A breathtaking new image of the famous Eagle Nebula captures a towering pillar of gas and dust sculpted by intense stellar radiation.

NASA's Curiosity rover has found iron-rich carbonates on Mars — a major clue that the Red Planet used to be habitable.

SpaceX launched its 32nd cargo mission to the International Space Station today (April 21), sending more than 3 tons of supplies and scientific hardware to the orbiting lab for NASA.

A SpaceX Falcon 9 rocket will launch a robotic Dragon cargo ship to the International Space Station early Monday morning (April 21), and you can watch the action live.

SpaceX launched the 10th batch of "proliferated architecture" spy satellites for the U.S. National Reconnaissance Office from California's Vandenberg Space Force Base today (April 20).

NASA's oldest active astronaut has redefined traveling "home" for your birthday, landing from the International Space Station on the same day that he turned 70.

NASA astronaut Don Pettit and two cosmonaut colleagues will return to Earth from the International Space Station this evening (April 19), and you can watch it live.