Dana D. Purifoy A former Air Force test pilot.
LRO characterizes the lunar radiation environment, biological impacts, and potential mitigation, determines a geodetic grid of the Moon, assesses the…
July 23, 2014 marks the 15th anniversary of the launch of the Chandra X-ray Observatory.
Sand dunes and large rocks are revealed in this panorama picture of Mars, the first photograph taken by Viking l's…
Next Giant Leap
STEREO's view on the July 23, 2012 coronal mass ejection, or CME, considered by scientists to be as powerful as…
In this July 1999 photograph, five astronauts pose for a traditional inflight crew portrait with a large poster depicting the…
The unpiloted Russian ISS Progress 55 resupply ship undocks from the International Space Station's Pirs Docking Compartment at 5:44 p.m.…
This close-up view shows the docking mechanism of the unpiloted Russian ISS Progress 55 resupply ship as it undocks from…
MMS determines the role played by electron inertial effects and turbulent dissipation in driving connections in electron diffusion, the reconnection…