A Russian laboratory module, called "Nauka," at the International Space Station has sprung a coolant leak. It is the third leak at ISS in less than a year. Photo courtesy of NASA ...

Following the usual routine with arriving Cygnus cargo ships, an astronaut aboard the station used the Canadarm2 robotic arm to capture the ship and then dock it with the Unity module.

Nasa celebrates the 25th anniversary of the International Space Station (ISS) and the historic STS-88 mission. The mission involved the joining of the Zarya and Unity modules using the Canadarm ...

On Earth, flight controllers will send commands to the spacecraft to start detaching from the Unity module's Earth-facing port using the ISS Canadarm2 robotic arm.

New modules have been added over time, allowing for more space for science and, at times, creature comforts. Today, a pair of Russian cosmonauts will be working outside of the ISS to prep it for ...

The Zarya-Unity modules remained unin­habited for two years, during which time the Russian Mir station was still in operation, until the Zvezda module was added to Zarya-Unity in July 2000 ...