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Home > News > Tags > sunspots
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The surface of the Sun is not perfectly uniform. When researchers first discovered sunspots, they saw the structure as dark, magnetic blemishes on the solar surface. Since then, explaining how the spots form has been a challenge, despite numerous attempts. A new theory is now being proposed.
One of the most widely-... |
1 February 2012
05:29 GMT |
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Though it's not advisable to look at the Sun with the naked eye, astronomers say that the sunspot group currently moving across the star's surface can be seen without telescopes. Dubbed AR 1302, the object started developing last week.
According to experts at NASA, this is the largest and most active su... |
28 September 2011
07:50 GMT |
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A group of investigators at the Stanford University, in the United States, announces the development of a new early-warning method for detecting sunspots deep inside the Sun. The approach allows experts time to prepare for the potential effects of the ensuing solar storm.Sunspots are dangerous because they can give b... |
20 August 2011
06:00 GMT |
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Contrary to some reports currently making the rounds in the media, a reduced level of solar activity will not produce global cooling. Researchers say that the number of sunspots on the star has little to do with the mean global temperatures here on Earth.Some began peddling this idea when solar physicists recently an... |
17 June 2011
09:25 GMT |
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A massive solar flare produced this week made auroras more intense in the Northern Hemisphere last night (June 8), and will most likely do the same tonight. Amateur skywatchers can track the phenomena taking place at high latitudes.Experts say that the light displays may be remarkably strong, as streams of highly-cha... |
9 June 2011
03:26 GMT |
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In a new investigation, researchers were able to gain more insight into the processes and phenomena that eventually lead to the formation of dark spots on the Sun. These so-called sunspots were mysterious until not long ago, but now experts say they known more about them than ever. The research team that carried out ... |
3 June 2011
02:41 GMT |
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Astronomers were recently able to determine what caused the massive solar flare the rippled over the surface of the Sun on February 14. Determining the causes that led to this event is very important, since this was the most powerful flare of its type released over the past five years.
The main conclusion of the ... |
3 May 2011
01:52 GMT |
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People living in New York City will have the chance to look up in the sky and see northern lights staring them right back in the face. The odd events are the result of a massive solar flare, which was produced by the Sun on March 9. The solar storm that resulted released vast amounts of material, mostly highly-energe... |
10 March 2011
08:49 GMT |
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Early Chinese and English astronomers may have been the first to observe sunspots, but the first scientific publication detailing them has just reached the age of 400 years. It was written by a German medical student named Johannes Fabricius. He began conducting studies of the Sun in March 1611, and observed the firs... |
10 March 2011
05:43 GMT |
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A group of scientists recently conducted a series of computer simulations on the Sun, which helped them determine why the last solar minimum had such low activity levels. The star produced far less sunspots than was expected of it during that time.
Our Sun operates in 11-year cycles, which have been documented fo... |
3 March 2011
02:40 GMT |
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Experts operating a solar telescope say that they have identified a massive solar flare and eruption taking place on Wednesday, September 8.This is good news for solar physicists, who have been wondering as to why the Sun is not more active for at least two years. The star is currently supposed to be exiting the sola... |
11 September 2010
05:10 GMT |
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Today at the International Astronomical Union Symposium on the Physics of Sun and Star Spots in Ventura, California, Research Professor Jeongwoo Lee from the New Jersey's Science & Technology University will speak about sunspots as a strong radio emissions source and the information that they carry.Professor Lee... |
26 August 2010
10:34 GMT |
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A group of investigators specializing in studies of the Sun held a conference on Tuesday, in which they discussed the challenges and threats ahead. Their concerns were prompted by the fact that the star is currently beginning to wake up, as in to exhibit increased levels of activity. After a couple of years in which ... |
10 June 2010
03:06 GMT |
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In a recent discovery that may explain why the Sun has so few sunspots so close to its solar maximum, experts have demonstrated that the top layers of the gigantic, plasma conveyor belt at work inside the celestial object is moving at record-setting speeds. While researchers are still not yet sure as to what implicat... |
13 March 2010
02:22 GMT |
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Many tourists visiting various locations where the Northern Lights are advertised as a possibility ask guides when the atmospheric events will “be turned on.” According to experts, guides may soon find it easier to answer this question with a higher degree of certainty. Astrophysicists know that the Sun p... |
15 February 2010
03:22 GMT |
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Astronomers announce the discovery of a new, active group of sunspots on the surface of our star, after a period of a couple of years in which the celestial body has been unusually quiet. The Sun usually functions in 11-year-long cycles, but it would appear that the last one has yet to pick up in speed and intensity,... |
8 February 2010
02:44 GMT |
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The Sun is notorious for its 11-year cycle, but also for the fact that it has sunspots on its surface that allow astronomers to analyze its “health” and, more importantly, predict space weather. But in years such as this one, when the solar minimum is in full effect, and very few sunspots are available, e... |
12 November 2009
05:16 GMT |
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According to experts at the American space agency, the concentration of cosmic-ray radiation around us has increased considerably this year, reaching its highest level in more than 50 years of observations. The level of cosmic rays has been under constant surveillance since the advent of the space age, and such a sha... |
30 September 2009
03:44 GMT |
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For the first time in more than a year, the Sun's face is again spotted. Two new features have been identified on its surface, and astronomers say that this may be an indicator of the fact that the solar cycle is intensifying. Though it should theoretically be near the peak of the current cycle, the star has bee... |
25 September 2009
08:32 GMT |
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According to a new report, released by a collaboration of scientists from the National Center for Atmospheric Research (NCAR), and the University of Michigan, it may be that sunspot activities are not enough to gage the intensity of solar actions, despite already-established knowledge. As an argument to prove their p... |
17 September 2009
10:45 GMT |
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Over the past year, astronomers have been concerned with the decreased levels of activity recorded by our Sun, which, if past cycles are any indicator, should be teeming with activity at this time. Very few sunspots and solar flares appeared earlier this year, but the scientific community sighed in relief over the 4t... |
7 July 2009
02:23 GMT |
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For a long time, astronomers have known that the Sun passes through 11-year activity cycles, in which periods of high and low activity can be recorded. However, up until now, there have been few cycles in which the star failed to become active when it was time to, such as it happens now. According to predictions, sin... |
19 June 2009
14:01 GMT |
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Sunspots have been thoroughly analyzed over the past couple of years, as a low solar cycle minimum turned the attention of the astronomical community to the Sun. But, despite trying to explain how the formations appeared, very few experts were able to come up with believable theories as to what they were made of, and... |
19 June 2009
03:55 GMT |
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A few days ago, the New Jersey Institute of Technology (NJIT) just unveiled its new, remarkable solar telescope, the Big Bear Solar Observatory (BBSO), located in sunny California. With its 1.6-meter aperture, the instrument is the largest of its kind in the world, and is also one of only five such major, land-based ... |
20 May 2009
04:39 GMT |
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Astronomers at NASA now bless their inspiration of sending the STEREO twin solar observatories into space, as the two spacecraft revealed only a few days ago the fact that the Sun seemed to be resuming its normal activity for this time. Last year, the star should have reached its minimum peak, and then begun to act ... |
7 May 2009
04:54 GMT |
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Our Sun seems to have entered a very calm period, seeing how none of its usual solar flares, storms, or spots have been noticed for quite some time. While the fact that our satellites and power grids are no longer threatened by the Sun may seem like a good thing, the matter is “shady” at best, because now... |
2 April 2009
06:45 GMT |
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Currently the Sun is going through a period of low activity, with few or no sunspots appearing on its surface. So far nobody is complaining, albeit it does seem that the low activity period has extended a bit too long and has even fooled the scientists into uncertainty regarding whether or not a new solar cycle has b... |
10 June 2008
02:43 GMT |
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JAXA launched the Hinode solar space observatory in September 2006 and is equipped with several instruments such as the solar optical telescope, an X-ray telescope and an EUV imaging spectrometer with which it can conduct investigations on the Sun's atmosphere but also on its interior, in order to establish the ... |
20 March 2008
10:15 GMT |
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The scientific community has been rather excited this week, as the SOHO spacecraft has captured in images what seems to be a small magnetic knot appearing on the surface of the Sun, announcing the end of the 23rd Solar Cycle, which has peaked during 2000 and 2003 with violent solar storms and material ejection. Origi... |
18 December 2007
06:57 GMT |
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Global warming is a terrible consequence of the human race continuously neglecting the planet and sucking it dry of natural resources to produce dangerous greenhouse gases. While some scientists tried to explain at least part of it as being caused by the Sun, this explanation contradicts experimental observations.Wh... |
11 July 2007
08:19 GMT |
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