
Supermassive black hole Sagittarius A* (Sgr A*) is located in the middle of the Milky Way galaxy.

NASA astronaut Chris Cassidy, Expedition 36 flight engineer, enters data in a computer in the Tranquility node of the International…

European Space Agency astronaut Luca Parmitano, Expedition 36 flight engineer, plays a guitar in the Unity node of the International…

Five of the six Expedition 36 crew members are pictured in the International Space Station’s Kibo laboratory during a daily…

NASA astronaut Karen Nyberg, Expedition 36 flight engineer, works with new test samples for the Advanced Colloids Experiment, or ACE,…

Expedition 38/39 crew members participate in a preflight press conference at NASA’s Johnson Space Center.

Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata (left), Expedition 38 flight engineer and Expedition 39 commander; along with Russian…

NASA astronaut Rick Mastracchio, Expedition 38/39 flight engineer, responds to a question from a journalist or social media participant during…

Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata, Expedition 38 flight engineer and Expedition 39 commander, responds to a question…

Russian cosmonaut Mikhail Tyurin, Expedition 38/39 flight engineer, responds to a question from a journalist or social media participant during…