Like an enormous cannon that is slowly turning its barrel toward us, the latest giant sunspot region AR1654 is steadily moving into position to face Earth, loaded with plenty of magnetic energy to create M-class flares—moderate-sized ...
Space Exploration
Jan 14, 2013
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A few sunspots are now 'peppering" the surface of our Sun—Spaceweather.com lists about 12 different sunspot groups today. Yesterday (January 7, 2013), astrophotographer John Chumack stepped outside over his lunch break ...
Space Exploration
Jan 9, 2013
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(Phys.org)—A total eclipse of the Sun will be visible from the northeastern Australia coast, along the Great Barrier Reef, about an hour after sunrise on November 14 there, which corresponds to the afternoon of Tuesday, ...
Space Exploration
Nov 6, 2012
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(Phys.org) -- The sun is nearly the roundest object ever measured. If scaled to the size of a beach ball, it would be so round that the difference between the widest and narrow diameters would be much less than the width ...
Space Exploration
Aug 16, 2012
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The Sun wanted to let us know there was action going on in other places in the Solar System besides Mars.
Space Exploration
Aug 7, 2012
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An active region on the Sun, AR1515, has been putting on quite a show over the last 8 days, sending out all sorts of solar flares. Scientists were sure the huge sunspot was building up to produce an X-class explosion, and ...
Space Exploration
Jul 9, 2012
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A team of scientists has created an "MRI" of the Sun's interior plasma motions, shedding light on how it transfers heat from its deep interior to its surface. The result, which appears in the journal the Proceedings of the ...
Space Exploration
Jul 9, 2012
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Active Region 1515 has now spit out 12 M-class flares since July 3. Early in the morning of July 5, 2012 there was an M6.1 flare. It peaked at 7:44 AM EDT. This caused a moderate – classified as R2 on the National Oceanic ...
Space Exploration
Jul 5, 2012
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This image shows four separate images of the M5.3 class flare from the morning of July 4, 2012. In clockwise order starting at the top left, the wavelengths shown are: 131, 94, 193, and 171 Angstroms. Each wavelength shows ...
Space Exploration
Jul 5, 2012
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Every ~120 years a dark spot glides across the Sun. Small, inky-black, almost perfectly circular, it's no ordinary sunspot. Not everyone can see it, but some who do get the strangest feeling, of standing, toes curled in the ...
Space Exploration
Jun 4, 2012
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