What happens to an astronaut's brain during a mission to Mars? Nothing good. It's besieged by destructive particles that can forever impair cognition, according to a UC Irvine radiation oncology study appearing in the May ...
SpaceX's unmanned Dragon cargo ship blasted off Tuesday toward the International Space Station, carrying a load of food and supplies for the astronauts living in orbit.
NASA is aiming to launch a rocket to an asteroid in five years and grab a boulder off of it—a stepping stone and training mission for an eventual trip sending humans to Mars.
A series of upcoming spacewalks at the International Space Station will begin a day late.
NASA's quest to send astronauts out into the solar system begins this week with a two-laps-around-Earth test flight.
A Russian Soyuz spacecraft carrying Italy's first female astronaut safely blasted off Sunday to begin its journey to the International Space Station.
Spacewalking astronauts doubled as trash men Wednesday, heaving an old science experiment and two antennas overboard at the International Space Station.
NASA is a giant step closer to launching Americans again from U.S. soil. On Tuesday, the space agency picked Boeing and SpaceX to transport astronauts to the International Space Station in the next few years.
Keeping upright in a low-gravity environment is not easy, and NASA documents abound with examples of astronauts falling on the lunar surface. Now, a new study by an international team of researchers led by York University ...
A pair of spacewalking astronauts managed to install a new antenna and complete other work Thursday outside the International Space Station, despite stubborn equipment.