Browse Archive
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Catching Space Weather in the Act
Special cameras aboard the Interstellar Boundary Explorer, or IBEX, spacecraft have snapped the first images of space weather as it happens.
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SDO Sundog Mystery
NASA's Solar Dynamics Observatory (SDO), best known for cutting-edge images of the sun, has made a discovery right here on Earth.
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SDO Celebrates One Year Anniversary
Project scientists discuss SDO's first year of science and collaboration with other Heliophysics System Observatory missions.
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First Ever STEREO Images of the Entire Sun
Four years after launch NASA's two STEREO spacecraft are now 180 degrees apart and able to image the entire Sun.
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Tracking the Origins of Speedy Space Particles
THEMIS helped track the origin of energetic particles in a kind of space weather called a substorm -- these speedy electrons gain energy from changing magnetic fields far from the origin of the event that causes them.
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Sundiving Comet Storm →
The sun has experienced a storm -- not of explosive flares and hot plasma, but of icy comets.
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Hotspots Help Explain Coronal Heating Mystery
Giant plumes of gas zooming up from the sun's surface at 150,000 mph may play a key role in heating its corona in excess of a million degrees.
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Hinode Observes Annular Solar Eclipse
On January 4, the Hinode satellite captured breathtaking images of an annular solar eclipse.
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Bob Benson: Tales of Chilly Research
Bob Benson tells tales of winter research in Minnesota, the South Pole and Alaska over a five-decade career studying Earth's ionosphere.
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SOHO Spots Comet #2000
The Solar and Heliospheric Observatory spots its 2000th comet: More than any comet-hunter in history.