Expedition 63 Commander Chris Cassidy took this epic “space-selfie” during his fourth spacewalk this year at the International Space Station.
NASA astronaut Chris Cassidy works during a six-hour spacewalk to install lithium-ion batteries on the International Space Station’s truss structure.
Expedition 63 Commander Chris Cassidy shows off the helmet of a U.S. spacesuit during maintenance inside the Quest airlock.
Comet NEOWISE streaked across the sky above the tree line of Lone Pine Lake, located on the Mount Whitney Trail…
Expedition 63 Commander Chris Cassidy conducts a spacewalk to set up the Tranquility module for the future installation of a…
NASA’s Terra satellite captured this image of fires wreaking havoc across a large swath of Siberia on July 21, 2020.
This week in 1999, space shuttle Columbia, mission STS-93, launched from NASA’s Kennedy Space Center on a four-day mission to…
NASA is developing technologies to send humans to the Red Planet.
Solar Orbiter’s first image reveal sunlight, magnetic fields and movement of the Sun
Solar Orbiter’s first view of the Sun is closest ever.
