UK Astronaut Tim Peake in Star City | European Space Agency

NASA Finds Giant Methane Ice Cloud in Titan's Stratosphere

NASA's Space to Ground: Spacewalks Continue | Week of 10/24/14

Ion Engine for Deep Space Missions: Test Firing | NASA

Hamm (Westfalen) Station, Hamm, Germany | Earth | Satellite

Astronauts Andreas, Samantha, Thomas and Timothy at Star City

ESA Astronaut Andreas during a simulation inside the full-scale mockup of the Soyuz capsule: View 2

ESA Astronaut Andreas during a simulation inside the full-scale mockup of the Soyuz capsule: View 1 | European Space Agency

The @SpaceX #Dragon sails over a cloudy #Sidney, #Australia as it departs the #ISS | NASA Astronaut Reid Wiseman | International Space Station

The @SpaceX #Dragon sails over a cloudy #Sidney as it departs the #ISS pic.twitter.com/ypaMndb5cI

— Reid Wiseman (@astro_reid) October 25, 2014

Ambition: The Film [A Must See!]

Ambition: The Film [A Must See!]

'Cosmos' star Neil deGrasse Tyson dazzles with science and humor

A 3D Map of the Adolescent Universe | Berkeley Lab

A 3D Map of the Adolescent Universe | Berkeley Lab

The Omega Nebula (M17)

Halley's Comet