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.
13 July 2011, 12:38 PM ET
Eleven years ago this week, one of the worst storms on record raged on the sun.
26 June 2011, 12:49 AM ET
Choose your favorite space story from the last week.
24 June 2011, 01:53 PM ET
Skywatchers at high northern latitudes may see some supercharged auroras, NASA says.
24 June 2011, 01:10 PM ET
Plasma from solar flares or coronal mass ejections travel along solar wind to ultimately produce aurora's in Earth's polar regions. This visually stunning explanatory video takes you on a journey from Sun's interior to the Earth's upper atmosphere.
23 June 2011, 02:56 PM ET
In 2004, the NASA probe's parachute malfunctioned and it crash-landed in Utah. The probe was sent about 900,000 miles from Earth to collect bits of solar wind and return them for study - some samples were salvaged.
23 June 2011, 02:01 PM ET
Earth and the other rocky planets aren't made out of the solar system's original starting material.