Image: This composite of the giant barred spiral galaxy NGC 6872 combines visible light images from the European Southern Observatory's Very Large Telescope with far-ultraviolet (1,528 angstroms) data from NASA's GALEX and 3.6-micron infrared data acquired by NASA's Spitzer Space Telescope. A previously unsuspected tidal dwarf galaxy candidate appears only in the ultraviolet, indicating the presence of many hot young stars. IC 4970, the small disk galaxy interacting with NGC 6872, is located above the spiral's central region. The spiral is 522,000 light-years across from the tip of one outstretched arm to the tip of the other, which makes it about 5 times the size of our home galaxy, the Milky Way. Images of lower resolution from the Digital Sky Survey were used to fill in marginal areas not covered by the other data. (Credit: NASA's Goddard Space Flight Center/ESO/JPL-Caltech/
SLS model 'flies' through Langley wind tunnel testing
NASA's Space Launch System buffet model in NASA's Langley Researcher Center's Transonic Dynamics Tunnel. The SLS is America's next heavy-lift launch vehicle that will provide an entirely new capability for science and human exploration beyond Earth's orbit. Credit: NASA/LaRC
NASA's Space Launch System buffet model in NASA's Langley Researcher Center's Transonic Dynamics Tunnel. The SLS is America's next heavy-lift launch vehicle that will provide an entirely new capability for science and human exploration beyond Earth's orbit. Credit: NASA/LaRC
Just 96 days since their launch, NASA's twin Van Allen Probes have already provided new insights into the structure and behavior of the radiation belts that surround Earth, giving scientists a clearer understanding about the fundamental physical properties of these regions more than half a century after their discovery.
A graphic depicting the twin Van Allen Probes in orbit within Earth's magnetic field. Credit: JHU/APL
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