(Phys.org)—A pair of researchers affiliated with the Natural History Museum in Chemnitz and Technische Universität Bergakademie Freiberg, both in Germany, has found evidence in ancient tree rings of a solar sunspot cycle ...
You can be thankful that we bask in the glow of a relatively placid star. Currently about halfway along its 10 billion year career on the Main Sequence, our sun fuses hydrogen into helium in a battle against gravitational ...
Space Exploration
Mar 30, 2015
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In the latter half of October, huge sunspots were observed on the surface of the Sun. These sunspots appeared at the east limb of the Sun on Oct. 16, and moved to the west as the Sun rotated. They rotated out of view after ...
Space Exploration
Nov 27, 2014
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Approximately every 11 years, the sun undergoes a complete personality change from quiet and calm to violently active. The height of the sun's activity, known as solar maximum, is a time of numerous sunspots, punctuated with ...
Space Exploration
Sep 3, 2014
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Over the past few months night sky watchers in the southern parts of Australia have been presented with lots of beautiful displays of the Aurora Australis or Southern Lights.
Space Exploration
Jul 7, 2014
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The surface of the sun has been surprisingly calm of late—with fewer sunspots than anytime in in the last century—prompting curious scientists to wonder just what it might mean here on Earth.
Space Exploration
Nov 24, 2013
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(Phys.org) —Something unexpected is happening on the Sun. 2013 was supposed to be the year of "solar maximum," the peak of the 11-year sunspot cycle. Yet 2013 has arrived and solar activity is relatively low. Sunspot numbers ...
Space Exploration
Mar 8, 2013
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Something unexpected is happening on the sun. 2013 is supposed to be the year of Solar Max, the peak of the 11-year sunspot cycle. Yet 2013 has arrived and solar activity is relatively low. Sunspot numbers are well below ...
Space Exploration
Mar 4, 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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