Latest Sunspot Stories
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.
NASA's Solar Dynamics Observatory (SDO) spotted one of the largest new sunspots to have appeared on the surface of the sun in years.
A third and fourth flare have erupted from sunspot 1283.
Visible to the human eye as dark blemishes on the solar disk, sunspots are the starting points of explosive flares and coronal mass ejections (CMEs) that sometimes hit our planet 93 million miles away.
Researchers said that solar storms are likely to become more disruptive to planes and spacecraft within decades.
As 2011 unfolds, the sun is once again on the eve of a below-average solar cycleâ€”at least thatâ€™s what forecasters are saying.
Researchers at the University of Central Lancashire studied the largest solar flare recorded in nearly five years.
Researchers at the University of Central Lancashire have monitored the birth of a sunspot over a period of eight hours using observations from NASAâ€™s Solar Dynamics Observatory (SDO).
In March of 1611, a German medical student named Johannes Fabricius left school at Leiden in Holland carrying several of the new-fangled telescopes that were beginning to appear in the Netherlands.
WASHINGTON, March 2, 2011 /PRNewswire-USNewswire/ -- NASA-sponsored research has resulted in the first computer model that explains the recent period of decreased solar activity during the sun's 11-year cycle.
Solar Maximum -- The Sun, a roiling ball of plasma, occupies its place in space approximately 93 million miles from Earth. Though it seems simple to inhabitants of this planet -- the Sun shines, giving light and heat -- the processes occurring in the Sun are so complex that many scientists devote their careers to just one aspect of solar activity. Changes in the activity of the Sun particularly engage solar scientists. Whether fluctuations in the solar magnetic field, expulsions of...
Sunspot -- A sunspot is a region on the Sun's surface (photosphere) that is marked by a lower temperature than its surroundings, and intense magnetic activity. Although they are blindingly bright, at temperatures of roughly 5000 Kelvin, the contrast with the surrounding material at some 6000 Kelvin leaves them clearly visible as dark spots. Interestingly, if they were isolated from the surrounding photosphere they would be brighter than an electric arc. History Apparent references...