NASA's Webb "Pathfinder Telescope" Successfully Completes First Super-Cold Optical Test

Goodnight to the Himalayas | International Space Station

Hefty Prominence Eruption on The Sun [Video] | NASA's SDO

Hefty Prominence Eruption | NASA's Solar Dynamics Observatory

The other side of The Himalayas | International Space Station

Two things have given me goosebumps up here—an incredible aurora flyover and watching the new Star Wars trailer! | NASA Astronaut Kjell Lindgren | International Space Station

Two things have given me goose bumps up here- an incredible #aurora flyover and watching the new Star Wars trailer! https://t.co/ZOue1wEvCf

— Kjell Lindgren (@astro_kjell) October 22, 2015

Journey to Mars: An international effort on This Week @NASA

Destination: Moon | European Space Agency

Beautiful Himalayas | International Space Station

Desert Lake Near Himalayas | International Space Station

Building NASA's Deep Space Orion Multi-Purpose Crew Vehicles

Standing on the Edge of the Bay: 1993 | NASA

Scott Kelly Becomes U.S. Astronaut to Spend the Most Time in Space

Scott Kelly Breaks US Astronaut Most Time in Space Record | NASA | Congratulations, Scott! Thank you for sharing your journey with us!

NASA's Space to Ground: Spacewalk Preps | Week of 10/16/2015

Sentinel-1A satellite mosaic of Europe | European Space Agency