SpaceX Unveils Dragon V2

Morpheus Completes Nighttime Flight Test

Expedition 40/41 Mission Overview

Welcome Aboard! New Crew Arrives on Space Station

HRP ForceShoe Evaluation

A CANYON GRANDER THAN THE GRAND CANYON

FROM:  NASA 

Valles Marineris: The Grand Canyon of Mars:   Explanation: The largest canyon in the Solar System cuts a wide swath across the face of Mars. Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep. By comparison, the Earth's Grand Canyon in Arizona, USA is 800 kilometers long, 30 kilometers across, and 1.8 kilometers deep. The origin of the Valles Marineris remains unknown, although a leading hypothesis holds that it started as a crack billions of years ago as the planet cooled. Several geologic processes have been identified in the canyon. The above mosaic was created from over 100 images of Mars taken by Viking Orbiters in the 1970s.  Image and story credit: Viking Project, USGS, NASA.

This Week at NASA

Space Station Live: Testing a New Spacesuit for an Asteroid Spacewalk

Space Station Live: 3D Printing in Space

Mars Weathercam Helps Find Big, New Crater (+playlist)

Dragon Heads Home (+playlist)

"WALK THIS WAY"

FROM:  NASA 
Spacewalk Training at the Neutral Buoyancy Laboratory 

In this image taken on Nov. 7, 2012, NASA astronaut Reid Wiseman and European Space Agency astronaut Alexander Gerst (partially obscured), both Expedition 40/41 flight engineers, attired in training versions of their Extravehicular Mobility Unit (EMU) spacesuits, are submerged in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Divers (out of frame) are in the water to assist Wiseman and Gerst in their rehearsal, which is intended to help prepare them for work on the exterior of the International Space Station. Wiseman, Gerst and Maxim Suraev of the Russian Federal Space Agency (Roscosmos) will launch to the space station aboard a Soyuz spacecraft on May 28, 2014, from the Baikonur Cosmodrome in Kazakhstan. They are scheduled to return to Earth in November. Image Credit: NASA.

DEM L241: Hardy Star Survives Supernova Blast

DEM L241: Hardy Star Survives Supernova Blast

Suivre la famille de lanceurs européens depuis le Gabon

Follow the family of European launchers from Gabon

SHOWING THE DUNES OF MARS WITH HiRISE

FROM:  NASA 

Nili Patera is one of the most active dune fields on Mars. As such, it is continuously monitored with the HiRISE (High Resolution Imaging Science Experiment) camera, a science instrument aboard NASA's Mars Reconnaissance Orbiter, with a new image acquired about every six weeks. By monitoring the sand dune changes, we can determine how winds vary seasonally and year-to-year. This observation is one of the more recent Nili images, acquired on March 1, 2014. Compared to an image acquired on Nov. 22, 2012, changes are obvious. The ripples on the dunes have moved, as well some of the dune boundaries, such as the one at upper left. New landslides on the central dune's lee face are apparent. Such changes, in just 16 months (and finer scale changes have been seen in just a couple of weeks), demonstrate the effectiveness of wind in modifying the Martian landscape. HiRISE is one of six instruments on NASA's Mars Reconnaissance Orbiter. The University of Arizona, Tucson, operates the orbiter's HiRISE camera, which was built by Ball Aerospace & Technologies Corp., Boulder, Colo. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project for the NASA Science Mission Directorate, Washington. > More information and image products Image Credit-NASA-JPL-Caltech-Univ. of Arizona Caption: Nathan Bridges.

Retired NASA research test pilot Bill Dana dies

Das Europäische Astronautenzentrum

Das Europäische Astronautenzentrum

Experts demonstrate versatility of Sentinel-1

Experts demonstrate versatility of Sentinel-1

Exam time

Exam time

Minister Kamp bij Woensdagmorgen.nl

Minister Kamp bij Woensdagmorgen.nl

CENTAURUS A WITH IT'S SUPER-MASSIVE BLACK HOLE CENTER

FROM:  NASA

Centaurus A is the fifth brightest galaxy in the sky -- making it an ideal target for amateur astronomers -- and is famous for the dust lane across its middle and a giant jet blasting away from the supermassive black hole at its center. Cen A is an active galaxy about 12 million light years from Earth.  This image is part of a "quartet of galaxies" collaboration of professional and amateur astronomers that combines optical data from amateur telescopes with data from the archives of NASA missions. NASA's Marshall Space Flight Center in Huntsville, Ala., manages the Chandra program for NASA's Science Mission Directorate in Washington. The Smithsonian Astrophysical Observatory in Cambridge, Mass., controls Chandra's science and flight operations.  Image credit: X-ray: NASA/CXC/SAO; Optical: Rolf Olsen; Infrared: NASA/JPL-Caltech.

Clues for a Martian Landscape

Clues for a Martian Landscape