International Space Station

Northrop Grumman's robotic Cygnus freighter reached the ISS early Tuesday morning (Aug. 6), carrying about 4 tons of supplies to the orbiting lab.

They say a penny doesn't go far these days, to which NASA has now added its two cents. Two pennies just lifted off for the International Space Station.

From thunderstorm sprites to volcanic plumes, and city lights to meteors, the world appears a different place from 250 miles (400 kilometers) up.

NASA's Cancer Moonshot Initiative aims to harness microgravity conditions on the International Space Station to study the disease like never before.

Two years after stating there were no plans to save artifacts from the end of the International Space Station, NASA is in the early stages of identifying what small parts of the complex to preserve.

Northrop Grumman's robotic Cygnus spacecraft departed the International Space Station this morning (July 12).

The six NASA astronauts currently living on the International Space Station beamed a message down to Earth to celebrate the United States' 248th birthday.

Boeing's Starliner is rated to stay in space for 45 days on its historic first astronaut mission, but that's going to be extended soon. Ground testing on its thrusters will start as soon as July 2.

NASA has delayed the next ISS spacewalk until at least late July while it investigates a spacesuit leak that cut a recent EVA short.

Boeing Starliner's spacecraft doesn't have a landing date, but the spacecraft is stable at the ISS and will remain there as a new round of testing begins.