ESA Astronaut Alexander Gerst in Japan's Kibo Laboratory | NASA

Dropship offers safe landings for Mars rovers | European Space Agency

Earth Clouds Captured by Cosmonaut Oleg Artemyev | International Space Station

Cosmonaut Oleg Artemyev: "Clouds over the Earth never end."
Image Date: July 3, 2014  
Credit: Cosmonaut Oleg Artemyev, Roscosmos

NASA Astronaut Reid Wiseman: "Hurricane #Arthur has grown an eye since we last met." | International Space Station

Hurricane #Arthur has grown an eye since we last met. pic.twitter.com/HBJoDrcNxQ

— Reid Wiseman (@astro_reid) July 3, 2014

NASA Astronaut Reid Wiseman: "Amazing #spotthestation photos w/Sun. 1st, Maximilian in Romania" | International Space Station

amazing #spotthestation photos w/Sun. 1st, Maximilian in Romania pic.twitter.com/BFrFEK4tc8

— Reid Wiseman (@astro_reid) July 3, 2014

NASA Astronaut Reid Wiseman: "Mesmerizing #spacevine - combustion #science from the Microgravity Glovebox" | International Space Station

Mesmerizing #spacevine - combustion #science from the Microgravity Glovebox https://t.co/85BxL9gMAa

— Reid Wiseman (@astro_reid) July 2, 2014

Along the Cygnus Wall | Astronomy Picture of the Day

"Dancing Aurora at Jökulsarlon" by Tanja Sund

NASA's Space Launch System Marks Progress as Core Stage Passes Critical Design Review

"Drakensberg Milky Way Panorama" by Tanja Sund

"Dreaming Tent" by Spencer Black

Impression, sunset | European Southern Observatory

Ocean on Saturn Moon Could be as Salty as the Dead Sea | NASA

Orbiting Carbon Observatory-2 (OCO-2) Rocket Launch! | NASA

Google Awesome Tribute to NASA's Space Station Fruit Fly Lab!!!

NASA ScienceCasts: Fruit Flies on the International Space Station