Arches of magnetic field lines towered over the sun's edge as a pair of active regions began to rotate into view in this video captured by NASA's Solar Dynamics Observatory on April 5-6, 2016. Active regions are areas of ...
Space Exploration
Apr 18, 2016
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Two active regions sported coils of bundled, magnetic loops spiraling above them (Nov. 11-12, 2015) over 16 hours.
Space Exploration
Nov 19, 2015
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A mass of solar material gathered itself into a twisting mass, spun around for a bit, then rose up and broke apart over a 10-hour period on Oct. 13, 2015. Prominences are unstable clouds of gas tethered above the surface ...
Space Exploration
Oct 19, 2015
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An active region viewed in profile put on quite a show of erupting plasma and looping arches on Sept. 22-23, 2015.
Space Exploration
Sep 30, 2015
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Using ultrafast beams of extreme ultraviolet light streaming at a 100,000 times a second, researchers from the Friedrich Schiller University Jena, Germany, have pushed the boundaries of a well-established imaging technique. ...
Optics & Photonics
Sep 21, 2015
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The sun was visually dominated by three substantial coronal holes that rotated across its face the week of Sept. 8-10, 2015. Coronal holes are areas where the sun's magnetic field lines extend out into space and don't return ...
Space Exploration
Sep 17, 2015
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Magnetically charged particles formed a nicely symmetrical arch at the edge of the sun as they followed the magnetic field lines of an active region on Aug.4-5, 2015. Before long the arch begins to fade, but a fainter and ...
Space Exploration
Aug 13, 2015
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21
Is the sun trying to send a message? A pair of giant filaments on the face of the sun have formed what appears to be an enormous arrow pointing to the right. If straightened out, each filament would be about as long as the ...
Space Exploration
May 29, 2015
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Watching the sun is dangerous work for a telescope. Solar instruments in space naturally degrade over time, bombarded by a constant stream of solar particles that can cause a film of material to adhere to the optics. Decades ...
Space Exploration
May 19, 2015
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NASA's Solar Dynamics Observatory, which watches the sun constantly, captured these images of a significant solar flare – as seen in the bright flash on the left – peaking at 6:11 p.m. EDT on May 5, 2015.
Space Exploration
May 7, 2015
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