ISS Expedition 42 Crew Profile: Samantha, Terry & Anton | NASA

ESA Astronaut Samantha Cristoforetti: Final preparations for ISS

"Hard to catch": Mesospheric clouds | International Space Station

High mesospheric cloud | International Space Station

Mesospheric cloud | International Space Station

The Plan to Map Illegal Fishing From Space

ESA's technical heart celebrates Rosetta's Philae landing

"Arrival" by Vangelis | ESA Rosetta Comet Mission

Exploring The World's Protected Areas from Space | NASA

How Do Active Volcanoes Change Clouds? | NASA

America's First Spacewalker, Astronaut Edward White, Readies for Gemini IV Liftoff

Why is the Earth's Ozone Hole Getting Smaller? | NASA

NASA Orion Spacecraft Attached to Delta IV Heavy Rocket

NASA X-24B Lifting Body Supersonic Aircraft in Flight

NASA X-23B - 24B Experimental Aircraft [VIDEO]

Rosetta: Elation and woe of Philae comet landing | BBC