Expedition 51 crewmember Fyodor Yurchikhin signs a commemorative book in a traditional ceremony.
Expedition 51 crewmember Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, right) answers a reporter’s question.
Expedition 51 crewmember Jack Fischer of NASA displays a medal derived from the Apollo-Soyuz crew patch.
This image from the HiRISE instrument on NASA’s Mars Reconnaissance Orbiter was acquired to take a closer look at a…
The Prandtl-M completes a successful research flight.
Test flights of the Prandtl-M have resumed. The airframe also is the basis for another aircraft that will collect weather…
A Prandtl-M aerodynamic model flies following an air launch from a remotely piloted Carbon Cub.
Dave Berger, right, and John Bodylski prepare the Prandtl-M for a test flight.
Expedition 50 Flight Engineer Thomas Pesquet of the European Space Agency (ESA) photographed brightly glowing auroras from his vantage point…
The CERES experiment is one of the highest priority satellite instruments developed for the NASA Earth Observing System.