News tagged with sunspot
Related topics: solar cycle
Study finds 'cool' gas may form and strengthen sunspots
Hydrogen molecules may act as a kind of energy sink that strengthens the magnetic grip that causes sunspots, according to scientists from Hawaii and New Mexico using a new infrared instrument on an old telescope.
Jan 31, 2012 |
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Giant sunspot turns to face the Earth
What has been billed as the largest sunspot observed in several years has now rotated around to stare straight at Earth. How large is it? Active Region 1339 and the group of sunspots adjacent to it extends ...
Space & Earth / Space Exploration
Nov 11, 2011 |
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Solar cycle primer
(PhysOrg.com) -- Telescopes spotted the first blemish on the sun in 1611. While the sun had long been thought—at least in the Western world—to be an unchanging, "perfect" orb, sky-watchers observed ...
Space & Earth / Space Exploration
Oct 28, 2011 |
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Sunspot 1302: It's big. It's bad. And it's coming our way
(PhysOrg.com) -- Behemoth sunspot 1302 unleashed another strong flare on Saturday morning--an X1.9-category blast at 5:40 am EDT. NASA's Solar Dynamics Observatory (SDO) recorded the extreme ultraviolet flash.
Space & Earth / Space Exploration
Sep 26, 2011 |
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An X1.4 Solar Flare and a CME
(PhysOrg.com) -- A large coronal mass ejection (CME) shot off the West (right) side of the sun at 6:24 PM ET on September 21, 2011. The CME is moving away from Earth at about 900 miles per second.
Space & Earth / Space Exploration
Sep 23, 2011 |
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Sunspot 1283 bristling with flares: An X1.8 and an M6.7
A third and fourth flare have erupted from sunspot 1283. The third came on September 7 at 6:36 PM ET, and was categorized as an X1.8 by the GOES spacecraft, making it the second X-class flare within 24 hours.
Space & Earth / Space Exploration
Sep 08, 2011 |
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Forecasters: New solar flare won't cause problems
(AP) -- Forecasters say a new solar flare should provide only a glancing blow on Earth on Friday and is unlikely to cause any problems.
Space & Earth / Space Exploration
Sep 07, 2011 |
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Something new on the Sun: Spacecraft observes new characteristics of solar flares
(PhysOrg.com) -- NASA's Solar Dynamics Observatory, or SDO, has provided scientists new information about solar flares indicating an increase in strength and longevity that is more than previously thought.
Space & Earth / Space Exploration
Sep 07, 2011 |
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Sunspot breakthrough
(PhysOrg.com) -- Imagine forecasting a hurricane in Miami weeks before the storm was even a swirl of clouds off the coast of Africa—or predicting a tornado in Kansas from the flutter of a butterfly's wing in Texas. These ...
Space & Earth / Space Exploration
Aug 25, 2011 |
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New method detects emerging sunspots deep inside the sun, provides warning of dangerous solar flares
Viewed from the technological perspective of modern humans, the sun is a seething cauldron of disruptive influences that can wreak havoc on communication systems, air travel, power grids and satellites – ...
Space & Earth / Space Exploration
Aug 18, 2011 |
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What's down with the Sun? Major drop in solar activity predicted
(PhysOrg.com) -- A missing jet stream, fading spots, and slower activity near the poles say that our Sun is heading for a rest period even as it is acting up for the first time in years, according to scientists ...
Space & Earth / Space Exploration
Jun 14, 2011 |
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NASA sees the sun having a solar blast (w/ video)
The Sun unleashed an M-2 (medium-sized) solar flare, an S1-class (minor) radiation storm and a spectacular coronal mass ejection (CME) on June 7, 2011 from sunspot complex 1226-1227. The large cloud of particles ...
Space & Earth / Space Exploration
Jun 07, 2011 |
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Rotating sunspots spin up a super solar flare
(PhysOrg.com) -- The largest solar flare recorded in nearly five years was triggered by interactions between five rotating sunspots. Researchers at the University of Central Lancashire studied observations ...
Space & Earth / Space Exploration
Apr 21, 2011 |
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Watching the birth of a sunspot
(PhysOrg.com) -- Researchers at the University of Central Lancashire have monitored the birth of a sunspot over a period of eight hours using observations from NASA's Solar Dynamics Observatory (SDO). Dr. ...
Space & Earth / Space Exploration
Apr 20, 2011 |
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Explaining the mystery of the missing sunspots
Sunspots have been observed for about four centuries, since they were first reported by Galileo. Appearing in roughly eleven-year cycles of activity, sunspots are regions of strong and complex magnetic fields ...
Space & Earth / Space Exploration
Apr 05, 2011 |
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