* Astronomy

Solar physicists have observed the smallest ever coronal mass ejection (CME) - a type of explosion where plasma from the Sun is thrown out into space, sometimes striking the Earth and damaging orbiting satellites. The observation has come as a great surprise to scientists and has turned previous i...

[img]http://sohowww.nascom.nasa.gov/data/www.esa.int/mdi...

This image maps the magnetic activity of the whole-Sun. It shows a 360 degree of longitude in the Carrington coordinate system normally used for solar observations. The map extent is from south pole to north pole in an equal area projection. The solar equator and each 60 degrees of longitude are mark...

NASA Announces Breakthrough in Space Weather Forecasting Researchers from NASA, the National Oceanic and Atmospheric Administration (NOAA), and the Lockheed Martin Advanced Technology Centres Solar and Astrophysics Laboratory (LMSAL) will present new findings on space weath...

Expand (149kb, 560 x 560) Credit NASA/SOHO

This is a real-time ultraviolet image of the Sun that measures a mid-temperature region of the Sun in a transition zone between the surface and the corona (the Sun's atmosphere). The b...

A layer deep in the solar atmosphere can be used to estimate the speed of the solar wind, a stream of electrified gas that constantly blows from the Sun. Estimating the speed of the solar wind will improve space weather fore...

Two links for Aurora watchers. They use data from ground-based magnetometers. One based at York, UK Example picture [url=http://www.dcs.lancs.ac.uk/su...

Aurora Alert, at 17:00 UT 21 Aug 2005: Small increase in local activity.

Aurora Alert, at 17:00 UT 21 Aug 2005: Small increase in local activity.

Expand (110kb, 1024 x 768)

Scientists Launch Solar Stormwatch To Ask Public For Help In Understanding The Sun The Royal Observatory, Greenwich (ROG), in partnership with the STFC Rutherford Appleton Laboratory and Zooniverse are launching Solar Stormwatch, a new web project where anyone can help spot and track solar sto...

The solar storm of 1859, also known as the Solar Superstorm, or the Carrington Event, was the most powerful solar storm in recorded history. From August 28 until September 2, numerous sunspots and solar flares were observed on the sun. Just before noon on September 1, the British astronomer, Richar...

The Sun Audio mashup (4.73mb, mp3)

A Big Surprise from the Edge of the Solar System NASA's Voyager probes are truly going where no one has gone before. Gliding silently toward the stars, 9 billion miles from Earth, they are beaming back news from the most distant, unexplored reaches of the solar system. Mission scientists say the prob...

Something New On the Sun: SDO Spots a Late Phase in Solar Flares The sun's surface dances. Giant loops of magnetised solar material burst up, twist, and fall back down. Some erupt, shooting radiation flares and particles out into space. Forced to observe this dance from afar, scientists use all the t...

Title: What is the true nature of blinkers? Authors: S. Subramanian, M. S. Madjarska, J. G. Doyle, D. Bewsher The aim of this work is to identify the true nature of the transient EUV brightenings, called blinkers. Co-spatial and co-temporal multi-instrument data, including imaging (EUVI/STEREO...

A 1976 study published in the journal Nature showed that strange Xenon, which is made in supernova explosions, is present within the composition of the Sun. Those findings by the UMR and Grambling team were largely dismissed. Now, in the March 31 2005 issue of Nature, a Japanese and French team repor...

NASA's Solar Fleet Peers Into Coronal Cavities The sun's atmosphere dances. Giant columns of solar material - made of gas so hot that many of the electrons have been scorched off the atoms, turning it into a form of magnetized matter we call plasma - leap off the sun's surface, jumping and twisting. So...

Next Solar Cycle May Not Happen 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 at the National Solar Observatory (NSO) and the Air Force Research Laboratory (...

Title: Reversals of the solar dipole Authors: David Moss, Leonid L. Kitchatinov, Dmitri Sokoloff During a solar magnetic field reversal the magnetic dipole moment does not vanish, but migrates between poles, in contradiction to the predictions of mean-field dynamo theory. We try to explain thi...

Large coronal mass ejection from sunspot 10898 taken by the Soho spacecraft on the 6th of July. This may cause Auroras tonight or tomorrow.

The solar radiation storm is still raging

Aurora Alert: Kp=4

Title: Can spicules be detected at disc centre in broad-band Ca II H filter imaging data ? Authors: C. Beck, R. Rezaei, K.G. Puschmann We estimate the formation height range contributing to broad-band and narrow-band filter imaging data in Ca II H to investigate whether spicules can be detected in s...

	Forum	Replies	Views	Last Post
Sun Aurora Smallest coronal mass ejection (Preview)	Astronomy News	1	3637	Jan 16 02:20 2008 by Blobrana
Solar physicists have observed the smallest ever coronal mass ejection (CME) - a type of explosion where plasma from the Sun is thrown out into space, sometimes striking the Earth and damaging orbiting satellites. The observation has come as a great surprise to scientists and has turned previous i...
Sun Sunspot Sunspots ( 1 2 3 4 5 … 7 ) (Preview)	Events	65	63910	May 16 11:01 2017 by Blobrana
[img]http://sohowww.nascom.nasa.gov/data/www.esa.int/mdi...
Sun Darkside of the Sun (Preview)	Events	0	3036	May 22 15:58 2005 by Anonymous
This image maps the magnetic activity of the whole-Sun. It shows a 360 degree of longitude in the Carrington coordinate system normally used for solar observations. The map extent is from south pole to north pole in an equal area projection. The solar equator and each 60 degrees of longitude are mark...
Sun Space Weather Forecasting ( 1 2 3 4 5 … 6 ) (Preview)	Astronomy News	55	68028	Mar 23 01:06 2015 by Blobrana
NASA Announces Breakthrough in Space Weather Forecasting Researchers from NASA, the National Oceanic and Atmospheric Administration (NOAA), and the Lockheed Martin Advanced Technology Centres Solar and Astrophysics Laboratory (LMSAL) will present new findings on space weath...
Sun Sun 03.10.08 (Preview)	Events	0	2793	Oct 3 18:38 2008 by Blobrana
Expand (149kb, 560 x 560) Credit NASA/SOHO
Solar System Sun The Sun ( 1 2 3 4 5 … 15 ) (Preview)	Solar System	147	73108	May 6 11:00 2015 by Blobrana
This is a real-time ultraviolet image of the Sun that measures a mid-temperature region of the Sun in a transition zone between the surface and the corona (the Sun's atmosphere). The b...
Solar Sun Solar wind ( 1 2 3 4 ) (Preview)	Astronomy News	32	46840	Sep 18 17:33 2015 by Blobrana
A layer deep in the solar atmosphere can be used to estimate the speed of the solar wind, a stream of electrified gas that constantly blows from the Sun. Estimating the speed of the solar wind will improve space weather fore...
Sun Aurora Geomagnetic storms ( 1 2 3 4 ) (Preview)	Earth	33	49226	Jun 1 16:22 2017 by Blobrana
Two links for Aurora watchers. They use data from ground-based magnetometers. One based at York, UK Example picture [url=http://www.dcs.lancs.ac.uk/su...
Sun Earth Aurora Aurora Alert ( 1 2 3 4 5 … 26 ) (Preview)	Events	253	51612	Mar 18 20:41 2018 by Blobrana
Aurora Alert, at 17:00 UT 21 Aug 2005: Small increase in local activity.
Sun The Sun (Preview)	Observations	0	3546	Sep 30 11:27 2007 by Blobrana
Expand (110kb, 1024 x 768)
Sun Solar Stormwatch (Preview)	General news	2	3582	Apr 14 20:14 2010 by Blobrana
Scientists Launch Solar Stormwatch To Ask Public For Help In Understanding The Sun The Royal Observatory, Greenwich (ROG), in partnership with the STFC Rutherford Appleton Laboratory and Zooniverse are launching Solar Stormwatch, a new web project where anyone can help spot and track solar sto...
Sun Aurora Solar storm of 1859 (Preview)	Events	5	9750	Sep 1 05:34 2012 by Blobrana
The solar storm of 1859, also known as the Solar Superstorm, or the Carrington Event, was the most powerful solar storm in recorded history. From August 28 until September 2, numerous sunspots and solar flares were observed on the sun. Just before noon on September 1, the British astronomer, Richar...
Sun The Sun (Preview)	Audio Visual	4	10100	Oct 3 11:56 2014 by Blobrana
The Sun Audio mashup (4.73mb, mp3)
Sun Heliosphere ( 1 2 ) (Preview)	Solar System	11	10763	Apr 24 19:08 2017 by Blobrana
A Big Surprise from the Edge of the Solar System NASA's Voyager probes are truly going where no one has gone before. Gliding silently toward the stars, 9 billion miles from Earth, they are beaming back news from the most distant, unexplored reaches of the solar system. Mission scientists say the prob...
Sun Solar Flares (Preview)	Solar	6	5817	Oct 7 14:09 2016 by Blobrana
Something New On the Sun: SDO Spots a Late Phase in Solar Flares The sun's surface dances. Giant loops of magnetised solar material burst up, twist, and fall back down. Some erupt, shooting radiation flares and particles out into space. Forced to observe this dance from afar, scientists use all the t...
Sun Blinkers (Preview)	Solar	0	2581	Nov 10 14:32 2011 by Blobrana
Title: What is the true nature of blinkers? Authors: S. Subramanian, M. S. Madjarska, J. G. Doyle, D. Bewsher The aim of this work is to identify the true nature of the transient EUV brightenings, called blinkers. Co-spatial and co-temporal multi-instrument data, including imaging (EUVI/STEREO...
Solar system Sun Solar supernova ( 1 2 3 4 5 … 9 ) (Preview)	Astronomy News	82	105923	Jun 13 22:00 2017 by Blobrana
A 1976 study published in the journal Nature showed that strange Xenon, which is made in supernova explosions, is present within the composition of the Sun. Those findings by the UMR and Grambling team were largely dismissed. Now, in the March 31 2005 issue of Nature, a Japanese and French team repor...
Sun Corona (Preview)	Solar	4	10373	Oct 16 19:19 2014 by Blobrana
NASA's Solar Fleet Peers Into Coronal Cavities The sun's atmosphere dances. Giant columns of solar material - made of gas so hot that many of the electrons have been scorched off the atoms, turning it into a form of magnetized matter we call plasma - leap off the sun's surface, jumping and twisting. So...
Sun Solar Cycle 25 (Preview)	Solar	1	3065	Jun 15 02:46 2011 by Blobrana
Next Solar Cycle May Not Happen 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 at the National Solar Observatory (NSO) and the Air Force Research Laboratory (...
Sun Solar magnetic field reversal (Preview)	Solar	5	10583	Sep 4 20:23 2015 by Blobrana
Title: Reversals of the solar dipole Authors: David Moss, Leonid L. Kitchatinov, Dmitri Sokoloff During a solar magnetic field reversal the magnetic dipole moment does not vanish, but migrates between poles, in contradiction to the predictions of mean-field dynamo theory. We try to explain thi...
Sun Sunspot 10898 CME (Preview)	Events	1	2891	Jul 7 13:59 2006 by Blobrana
Large coronal mass ejection from sunspot 10898 taken by the Soho spacecraft on the 6th of July. This may cause Auroras tonight or tomorrow.
Solar Sun Sun 09.12.06 (Preview)	Events	7	10954	Oct 31 02:04 2011 by Blobrana
The solar radiation storm is still raging
Sun Earth Aurora Aurora Alert 2 (Preview)	Events	0	2570	Jun 10 18:53 2013 by Blobrana
Aurora Alert: Kp=4
Sun Spicules (Preview)	Solar 2013	2	4169	Jun 24 17:30 2017 by Blobrana
Title: Can spicules be detected at disc centre in broad-band Ca II H filter imaging data ? Authors: C. Beck, R. Rezaei, K.G. Puschmann We estimate the formation height range contributing to broad-band and narrow-band filter imaging data in Ca II H to investigate whether spicules can be detected in s...