13 September 2011, 02:50 PM ET
See skywatcher photos of the dazzling aurora light shows.
13 September 2011, 11:38 AM ET
Observers in Canada and on the International Space Station got quite a show.
12 September 2011, 06:40 PM ET
More M- or X-class flares should be coming from sunspot 1283.
10 September 2011, 04:34 AM ET
Was it the 45th anniversary of the movie Star Trek, events in space to remember 9/11 or something else?
09 September 2011, 11:42 PM ET
A series of solar storms could charge up the northern lights displays in the high north.
08 September 2011, 03:15 PM ET
An amateur radio astronomer captured radio sounds from the Sun, specifically from sunspot 1283. The third significant flare since September 6th from this active sunspot plays as the backdrop to the celestial shortwave radio static.
08 September 2011, 02:01 PM ET
Powerful solar storms have erupted in each of the last four days.
07 September 2011, 04:28 PM ET
NASA's Solar Dynamics Observatory spacecraft captured this solar flare. The top row shows the eruption, while the bottom row shows two traces of the sun's brightness, highlighting a second outburst more than an hour later.
07 September 2011, 03:11 PM ET
About 15 percent of solar flares have a previously undetected second burst of energy.
06 September 2011, 07:50 PM ET
The sun let loose a powerful X2.1-class solar flare Tuesday, and less intense one Monday night.
26 August 2011, 03:41 PM ET
With a techniques borrowed from earthquake detection, researchers are learning to predict where sunspots will boil-up. That gives officials in charge of satellites, power grids and radio communications more warning of crippling geomagnetic storms.
24 August 2011, 04:11 PM ET
Sunspot 1271 has been changing form over the past 72 hours, possibly a pre-cursor to a M-Class solar flare that could pose a threat to Earth. Includes Solar Dynamic Observatory imagery time-lapsed from August 22-24, 2011. Editor: Steve Spaleta
21 August 2011, 06:56 AM ET
Was it the massive sun storm, vegans who could colonize Mars or something else?
18 August 2011, 04:05 PM ET
Scientists get the best-ever look at a massive sun explosion.
18 August 2011, 02:38 PM ET
A never before seen look at the path of a coronal mass ejection from the solar surface to Earth grabbed by NASA's twin Sun-studying satellites, letting scientists measure the expanding super-hot gas shot out by solar eruptions.
18 August 2011, 02:01 PM ET
Analyzing sound waves beneath the surface of the sun could help scientists detect emerging sunspot regions.
16 August 2011, 04:15 PM ET
NASA's space weather briefing begins Thursday (Aug. 18) at 2 p.m. ET.
14 August 2011, 08:08 AM ET
Was it the huge solar flare, our life in a multiverse, DNA building blocks in space or something else?
13 August 2011, 02:49 AM ET
Check out a bright solar flare, colliding galaxies, a meteor shower and a stunning view of New York.
10 August 2011, 10:07 AM ET
Solar flares are classified on a logarithmic scale according to energy levels.
09 August 2011, 05:06 PM ET
Eruptions like Tuesday's X-class flare will only become more common.
09 August 2011, 12:18 PM ET
A comprehensive look at the different classes associated with Sun flares and the impact they have on Earth. Includes footage of the most powerful flare recorded.
09 August 2011, 10:52 AM ET
The X6.9-class solar storm rocked the sun early Tuesday (Aug. 9).
09 August 2011, 10:11 AM ET
The Aug 9, 2011 eruption on the Sun that produced a X-7 class flare caused a temporary blackout of high frequency radio transmissions on the side of Earth covered in daylight. Navigation signals can be degraded in these instances.
05 August 2011, 09:39 PM ET
A solar storm may spark auroras as far south as Pennsylvania, NASA says.
05 August 2011, 12:11 PM ET
A double whammy of coronal mass ejections occurred on our star, less than 2 hours apart, on August 3rd. Solar winds may carry these super-heated particles towards Earth; a glancing blow causing auroras and possibly damaging satellites.
01 August 2011, 08:28 PM ET
Merely a bug in the face of our solar mammoth, the international space station was captured through the eyes of telescopes using a Canon Digital Rebel XT for still photography and a Phillips ToUcam Pro II for video. Snapped in Minnesota on 7/30/2011.
01 August 2011, 06:12 PM ET
A powerful M9-class solar flare erupted from the sun on July 29.
01 August 2011, 11:00 AM ET
See recent images of the sun taken by the Solar Dynamics Observatory and the two STEREO spacecraft.
28 July 2011, 02:38 PM ET
The solar twister was nearly 150,000 kilometers tall.
27 July 2011, 01:01 PM ET
Magnetic waves may be the secret to the sun's ultra-hot corona.
25 July 2011, 10:01 AM ET
A look underneath the Sun's magnetic plasma in filtered light shows the correlation between bright solar active regions and their sunspot sources.
20 July 2011, 03:49 PM ET
Space Shuttle Discovery captured these amazing night into day images, including an Aurora Borealis, while docked to the International Space Station in April 2010.
19 July 2011, 03:34 PM ET
The twin Artemis probes will study the moon from orbit for the next seven to 10 years.
18 July 2011, 02:55 PM ET
Over a 2 hour period the Sun released a massive strand of plasma that split and twisted into what resembles a dragon before falling back to the surface. Captured by the Solar Dynamics Observatory on July 12, 2011.
14 July 2011, 01:03 PM ET
Here's a blow-by-blow of one of the most powerful solar storms in recent history.