
The night lights of Tokyo, Japan, are pictured from the International Space Station as it orbited 261 miles above the…

Expedition 64 Flight Engineer Kate Rubins applies her signature to the Unity module’s vestibule.

Expedition 64 Flight Engineer Victor Glover applies his signature to the Unity module’s vestibule.

Expedition 64 Flight Engineer Shannon Walker applies her signature to the Unity module’s vestibule.

Expedition 64 Flight Engineer Michael Hopkins applies his signature to the Unity module’s vestibule.

Expedition 64 Flight Engineer Soichi Noguchi applies his signature to the Unity module’s vestibule.

Expedition 64 Commander Sergey Ryzhikov conducts training on a computer inside the Zvezda service module.

Expedition 64 Flight Engineer Sergey Kud-Sverchkov conducts training on a computer inside the Zvezda service module.

This week in 1965, technicians at NASA’s Marshall Space Flight Center successfully test-fired the Saturn V first stage for the…

This image, taken by the Chandra X-Ray Observatory in 2012, shows an extraordinary outburst from a black hole.