Browse Archive
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SORCE: A Decade in the Sun
NASA's Solar Radiation and Climate Experiment (SORCE) satellite has been providing data on the sun's irradiance for 10 years.
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NASA Voyager Status Update on Voyager 1 Location
The consensus of the Voyager science team is that Voyager 1 has not yet reached interstellar space.
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NASA's SDO Sees an Eclipse And a Transit
On Mar. 11, 2013, NASA's Solar Dynamics Observatory caught a rare sight on camera: the sun with both Earth and the moon passing in front of it.
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Solar Wind Energy Source Discovered →
Using data from an aging NASA spacecraft, researchers have found signs of an energy source in the solar wind that has caught the attention of fusion researchers.
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Solar Cycle Update: Twin Peaks? →
2013 is supposed to be the year of Solar Max, but solar activity is much lower than expected. At least one leading forecaster expects the sun to rebound with a double-peaked maximum later this year.
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Van Allen Probes Discover a Surprise Circling Earth
Shortly after the Van Allen Probes launched to study the radiation belts around Earth, they saw something no one had ever seen before: a new configuration, showing an extra, third belt extending out into space.
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Van Allen Probes Discover a New Radiation Belt →
Earth's radiation belts were one of the first discoveries of the Space Age. A new finding published in today's issue of Science shows that we still have much to learn about them.
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Deciphering the Mysterious Math of the Solar Wind
A NASA Goddard scientist has created a set of necessary equations to describe a kind of magnetic wave, known as an Alfvén wave, in the solar wind.
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SDO Shows A Little Rain On the Sun
On July 19, 2012, the sun treated viewers to one of its dazzling magnetic displays -- a phenomenon known as coronal rain.
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Six Years of THEMIS: Understanding the Magnetosphere
In THEMIS's sixth year in space, it is helping to show how even small variations in the magnetosphere can sometimes cause extreme space weather responses, helping scientist map and predict events in this complex system.