
Astronaut Raja Chari sequences DNA from bacteria samples to understand the microbial environment on the International Space Station.

Astronaut Thomas Marshburn cleans the ventilation system inside the International Space Station’s Tranquility module.

The sun shines above the Earth’s horizon as the International Space Station orbited above Canada.

The first rays of an orbital sunrise break through the Earth’s horizon as the International Space Station orbited above Australia.

Astronaut Raja Chari displays the half-opened Combustion Integrated Rack aboard the International Space Station’s U.S. Destiny laboratory module.

Astronaut Kayla Barron sets up an AstroBee robotic free flyer with an experimental audio sensor for the SoundSee Mission experiment.

To be an astronaut, you’ve got to dig deeper. This is something Deniz Burnham, a newly selected NASA astronaut candidate,…

Expedition 66 crew members Mark Vande Hei and Anton Shkaplerov train on a computer for Soyuz MS-19 crew ship emergency…

Expedition 66 Flight Engineers Mark Vande Hei and Pyotr Dubrov train on a computer for Soyuz MS-19 crew ship emergency…