News tagged with sunspots
James Cook and the transit of Venus
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, to ...
Space & Earth / Space Exploration
2 hours ago |
5 / 5 (1) |
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Scientists find errors in hypothesis linking solar flares to global temperature
(PhysOrg.com) -- The field of climate science is nothing if not complex, where a host of variables interact with each other in intricate ways to produce various changes. Just like any other area of science, ...
Apr 07, 2010 |
3.6 / 5 (49) |
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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 |
5 / 5 (28) |
114
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Sunspots could soon disappear for decades: study
(PhysOrg.com) -- Sunspot formation is triggered by a magnetic field, which scientists say is steadily declining. They predict that by 2016 there may be no remaining sunspots, and the sun may stay spotless ...
Space & Earth / Space Exploration
Sep 15, 2010 |
4.9 / 5 (55) |
576
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How big are sunspots?
The short answer? Really big. The long answer? Really, really big.
Space & Earth / Space Exploration
May 18, 2012 |
5 / 5 (5) |
0
A Puzzling Collapse of Earth's Upper Atmosphere
NASA-funded researchers are monitoring a big event in our planet's atmosphere. High above Earth's surface where the atmosphere meets space, a rarefied layer of gas called "the thermosphere" recently collapsed ...
Space & Earth / Earth Sciences
Jul 15, 2010 |
4.4 / 5 (47) |
45
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Long-standing sunspot puzzle solved
(PhysOrg.com) -- Scientists at the Universities of Glasgow, Strathclyde and Central Lancashire have used 21st Century solar observations and image processing to finally solve a sunspot puzzle first noticed ...
Space & Earth / Space Exploration
Aug 19, 2009 |
4.5 / 5 (20) |
4
Solar Mystery Solved
(PhysOrg.com) -- Solar flares are amongst the most dangerous cosmic phenomena man has ever known. Though they pose no harm to humans, their effect on technology is vast. When they occur, they possess the capability ...
Aug 26, 2009 |
4.4 / 5 (20) |
8
Why NASA Keeps a Close Eye on the Sun's Irradiance
(PhysOrg.com) -- For more than two centuries, scientists have wondered how much heat and light the sun expels, and whether this energy varies enough to change Earth’s climate. In the absence of a good method ...
Space & Earth / Space Exploration
May 25, 2010 |
4.5 / 5 (13) |
9
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Are Sunspots Disappearing?
The sun is in the pits of the deepest solar minimum in nearly a century. Weeks and sometimes whole months go by without even a single tiny sunspot. The quiet has dragged out for more than two years, prompting ...
Space & Earth / Space Exploration
Sep 03, 2009 |
4.8 / 5 (27) |
15
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 |
5 / 5 (1) |
1
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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 |
4.1 / 5 (10) |
22
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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 |
4.8 / 5 (13) |
41
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New Solar Cycle Prediction: Fewer Sunspots, But Not Necessarily Less Activity
(PhysOrg.com) -- An international panel of experts has released a new prediction for the next solar cycle, stating that Solar Cycle 24 will peak in May 2013 with a below-average number of sunspots. Led by ...
Space & Earth / Space Exploration
May 27, 2009 |
4.3 / 5 (16) |
5
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 |
5 / 5 (8) |
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