Two spacewalking astronauts have successfully made urgent repairs at the ISS.
Space flight can decrease the physical fitness level of astronauts, a study has found out.
ESA astronaut Thomas Pesquet recently cast his vote for the French presidential elections from the ISS.
What could be these microorganisms spotted on the walls and surfaces of the ISS?
Astronaut Peggy Whitson is congratulated by President Trump in an Earth-to-space call.
NASA is working on reducing the estimated cost for the "Journey to Mars" mission.
Orbital ATK's Cygnus spacecraft will send cargo to the International Space Station.
NASA to livestream 4K videos from space at the NAB panel this April.
Three astronauts aboard Soyuz MS-02 returned to Earth after 173 days from the International Space Station.
Peggy Whitson takes over the command of the ISS for the second time in her career.
NASA scientists and congress members are debating the fate of ISS after 2024.