Nikolai Tikhonov and Andrei Babkin will no longer fly in April.
The International Space Station is a $100 billion research outpost in low-Earth orbit. It was built by 15 different countries and overseen by 5 space agencies, among them NASA, Russia's Roscosmos agency, the European Space Agency, the Canadian Space Agency and the Japan Aerospace Exploration Agency. Construction began in 1998 and rotating astronaut crews have lived on the ISS continuously since 2000. Today, the ISS is the largest human-built structure in space. See the latest news, photos and videos from ISS missions here.
The last quarter moon looms behind the International Space Station's Canadarm2 robotic arm in this photo by NASA astronaut Jessica Meir.
See photos of Northrop Grumman's amazing Antares rocket launch that sent the Cygnus NG-13 spacecraft to the International Space station on Feb. 15, 2020.
A Northrop Grumman Antares rocket launched a commercial Cygnus cargo ship to the International Space Station for NASA after a week of delays.
Northrop Grumman's Valentine's Day cargo launch to the International Space Station has been delayed by at least 24 hours due to high winds, NASA says.
Six days after returning from her record-setting first space mission, Christina Koch said that it took longer to adjust to life in orbit than it did to transition to being back on Earth.
There's a space double feature in store for rocket fans today, with two launches to some very different places off Earth. Here's how to watch them online.
Northrop Grumman is counting down to a sunset rocket launch tonight (Feb. 9) and it just might be visible to observers along a wide swath of the U.S. East Coast, weather permitting.
NASA is launching a bevy of crew supplies and scientific cargo to the International Space Station Sunday (Feb. 9) from NASA's Wallops Flight Facility in Virginia.
NASA astronaut Christina Koch wrapped up her first stay on the International Space Station today (Feb. 6).
Three Expedition 61 crewmembers will leave the International Space Station and return to Earth Thursday (Feb. 6), and you can watch their journey home live online.
Record-breaking NASA astronaut Christina Koch will return to Earth Thursday (Feb. 6) after spending 328 days in space, during which she completed numerous science experiments.
NASA astronaut Christina Koch chatted today (Feb. 4) with the media about her record-breaking time in space.
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