Astronaut Nichole Ayers recently witnessed a phenomenon known as a sprite from the International Space Station.

U.S. astronaut Nichole "Vapor" Ayers captured a spectacular view of a phenomenon known as a "sprite" blazing to life above an ...

From the International Space Station, NASA astronaut Nichole Ayers captured a rare red sprite over Mexico and the United ...

European Space Agency Astronaut Paolo Nespoli — who first traveled to space aboard the Space Shuttle Discovery in 2007 — photographed a unique and stunning image of the space shuttle Endeavour ...

NEW images reveal the recent lunar eclipse as seen from the International Space Station. European Space Agency (ESA) astronaut Samantha Cristoforetti took to Twitter on Monday to share three stunni… ...

Pettit is an active NASA astronaut. His last trip to space was for a lengthy stay on the International Space Station in 2012. Pettit popped up on Reddit on Sunday to share an image he named ...

NASA astronaut Don Pettit is just a couple of days away from returning to Earth on a Russian Soyuz spacecraft after a seven-month stay at the International Space Station, making it the perfect ...

Retired astronaut Scott Kelly spent a record-setting 340 days on the International Space Station. And while he was there, he took hundreds of photographs that he compiled into a book: "Infinite ...

UAE astronaut Sultan Al Neyadi, who is on a six-month mission to the International Space Station (ISS), has shared captivating images of the Himalayas from space on Twitter.