NASA's Goddard Space Flight Center

Astrophysicists explore a blazar

An international team of astrophysicists using telescopes on the ground and in space have uncovered surprising changes in radiation emitted by an active galaxy. The picture that emerges from these first-ever simultaneous ...

dateMar 18, 2009 in Astronomy
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Understanding the magnetic sun

The surface of the sun writhes and dances. Far from the still, whitish-yellow disk it appears to be from the ground, the sun sports twisting, towering loops and swirling cyclones that reach into the solar upper atmosphere, ...

dateJan 29, 2016 in Space Exploration
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Fermi Space Telescope sharpens its high-energy vision

Major improvements to methods used to process observations from NASA's Fermi Gamma-ray Space Telescope have yielded an expanded, higher-quality set of data that allows astronomers to produce the most detailed census of the ...

dateJan 07, 2016 in Astronomy
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