
This photograph from the International Space Station looks across the snow-capped Himalayas and into southern China.

The International Space Station is pictured orbiting 258 miles above the Persian Gulf.

The Apollo 11 crew simulates deploying and using lunar tools on the surface of the Moon during a training exercise…

The X-ray Imaging and Spectroscopy Mission will greatly expand our knowledge of the high-energy universe and recently passed two key…

Supernovas are the explosive deaths of the universe’s most massive stars.

The SpaceX Dragon resupply ship approaches the International Space Station for a docking to the Harmony module’s forward port.

The SpaceX Dragon resupply ship approaches the International Space Station for a docking to the Harmony module’s forward port.

The SpaceX Dragon resupply ship approaches the International Space Station for a docking to the Harmony module’s forward port.

The SpaceX Dragon resupply ship approaches the International Space Station for a docking to the Harmony module’s forward port.