11 September 2014, 07:00 AM ET
The sun fired off strong flares Tuesday and Wednesday from a sunspot known as Active Region 2158, which will be the focus of a free webcast hosted today at 1 p.m. EDT by the online Slooh Community Observatory. Watch it here on Space.com.
10 September 2014, 05:24 PM ET
The sun unleashed an X-class solar flare — the most powerful type — at 1:45 p.m. EDT today from an Earth-facing sunspot known as Active Region 2158. The flare poses no danger to anyone here on Earth, and orbiting astronauts are safe as well.
03 September 2014, 12:44 PM ET
A NASA satellite watched as a huge filament of plasma that had been creeping across the face of the sun erupted yesterday (Sept. 2).
26 August 2014, 02:52 PM ET
The sun kicked off this week with an explosive solar flare that, while not aimed directly at Earth, may be a hotspot to watch over the next few days.
25 August 2014, 03:40 PM ET
Expedition 40 astronaut Alexander Gerst said "We flew right through a massive aurora after last week's solar mass ejection." The space station maintains a altitude of between 205 and 270 miles above Earth.
23 August 2014, 08:20 AM ET
The northern lights illuminated Arctic skies earlier this week in a stunning display that could even be appreciated by astronauts living on the International Space Station.
22 August 2014, 07:57 PM ET
Sunspot AR2149 erupted with an M3-class flare on August 21st, 2014. NASA's Solar Dynamics Observatory captured the fireworks.
13 August 2014, 11:00 AM ET
Small 'nanoflares' erupting from the sun might be the key to unlocking a cosmic mystery, according to a new study.
29 July 2014, 11:30 AM ET
If a huge solar eruption in 2012 had hit the Earth, the effects would have been so devastating that we'd still be recovering two years later, scientists working on several new studies conclude.
08 July 2014, 03:38 PM ET
An M6-class flare erupted from sunspot AR2113 on July 8th, 2014. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths.
24 June 2014, 02:36 PM ET
The Big Bear Solar Observatory has delivered high definition views of a sunspot. The data will be used to unravel mysteries presented by these dark and concentrated magnetic fields.
19 June 2014, 07:29 AM ET
The sun is supposed to be at the height of its 11-year active cycle, but for the most part things have been pretty quiet.
11 June 2014, 10:06 AM ET
Sunspot AR2087 had already popped two X-class Flares on June 10, 2014 when, on June 11th, it erupted with M-5 and X-1 Flares back to back. The Sunlit side of the Earth may face some HF radio blackouts. FULL STORY: http://goo.gl/nJfcV1
11 June 2014, 09:54 AM ET
The sun is hitting its stride. Earth's closest star shot off yet another powerful solar flare today (June 11) after producing a pair of major solar storms Tuesday (June 10).
10 June 2014, 12:33 PM ET
Scientist have labeled it as a "mini-max", due to the low number of sunspots at the cycle's peak. Earth is not out of the woods yet though, the tail end of solar cycles tend to harbor the strongest flares and eruptions.
10 June 2014, 10:30 AM ET
The sun unleashed two massive solar flares Tuesday (June 10), both of them reaching X-class levels, the biggest storms on the sun. See video of the solar flares here.
10 June 2014, 10:17 AM ET
Sunspot AR2087 gave NASA's Solar Dynamics Observatory a show on June 10th, 2014 with back to back X2.2 and X1.5 solar flares. NOAA cautioned against a wide area blackout of HF radio communications. FULL STORY: http://goo.gl/q0tLYF
06 June 2014, 10:37 AM ET
A massive formation on the sun made of super-hot magnetic plasma erupted this week in an explosive solar storm captured on video by NASA spacecraft.
22 May 2014, 12:26 AM ET
Astronomers using the NASA/ESA Hubble Space Telescope have captured the images in this amazing space wallpaper showing the dancing auroral lights at Saturn’s north pole.
20 May 2014, 06:00 AM ET
Scientists have caught a glimpse of the processes that lead to the formation of solar flares and the associated space weather.
15 May 2014, 02:38 PM ET
A new study finds in an increase in lightning strikes after large solar winds. The findings suggest that particles from the sun may interact with the atmosphere to make lightning more likely.
09 May 2014, 05:17 PM ET
A NASA spacecraft has made a surprising find on the surface of the sun: a square-shaped 'hole' in the star's outer atmosphere. You can watch the video here.
09 May 2014, 06:37 AM ET
Four spacecraft and one ground-based observatory recorded the eruption of a powerful X-class solar flare on March 29, making it the best-observed such event in history, NASA officials said.
08 May 2014, 01:02 PM ET
On March 29, 2014, an X-class flare erupted from the right side of the sun and vaulted into history as the best-observed flare of all time. See the photos here.
07 May 2014, 12:36 PM ET
NASA's SDO, IRIS and RHESSI spacecrafts, along with JAXA's Hinode had their imagers pointed at the sunspot that erupted with an x-class flare on March 29th, 2014. - Rippled Earth's Magnetic Field: http://goo.gl/Kb1JHa
02 May 2014, 07:01 AM ET
NASA's Solar Dynamics Observatory probe watched the dark-hued twister churn and ultimately erupt over the course of April 29-30. Mission scientists used the spacecraft's imagery to create an 18-second-long video of the dramatic solar tornado.
30 April 2014, 02:44 PM ET
The International Sun-Earth Explorer Cometary Explorer (ISEE-3 / ICE) – launched in 1978 – makes its closest approach to Earth in August 2014.
25 April 2014, 06:47 AM ET
The sun erupted with a massive solar flare late Thursday (April 24), triggering a temporary communications blackout on some parts of Earth. See video of the X1.3 solar flare here.
16 April 2014, 05:00 PM ET
Auroras dance, the Milky Way dazzles and lightning sparks in the night sky over some of the most rugged and beautiful terrain South Dakota, Wyoming and Utah have to offer as seen in this magnificent new time-lapse film.
10 April 2014, 11:21 AM ET
Alaska Aurora Tour group teacher/photographer John Chumack (http://GalacticImages.com)captured the Northern Lights above the Chena Hot Springs Resort, atop Charlie Dome. The next tour is schedule for 2015: http://goo.gl/TD64VQ
10 April 2014, 01:12 AM ET
The northern lights, captured over the snow of Maine.
07 April 2014, 09:19 AM ET
An M6-class flare erupted from a sunspot on the Sun on April 2nd, 2014 and was observed by NASA's Solar Dynamics Observatory. The bright magnetic burst is seen in two wavelengths of extreme ultraviolet light: 304 Angstroms and 171 Angstroms.
31 March 2014, 02:46 PM ET
Scientists are using data gathered by NASA's twin Van Allen Probes, which launched to Earth orbit in August 2012, in concert with advanced computer models, to simulate the dynamic radiation environment of near-Earth space, two new studies report.
31 March 2014, 02:02 PM ET
On March 31st, 2014, NASA's Solar Dynamics Observatory captured an M1.4-class flare erupting from sunspot AR2014. During the flare, plasma erupted and was sucked backed into the Sun.
31 March 2014, 12:26 PM ET
The sun unleashed a major solar flare Saturday (March 29) that sparked a radio blackout on Earth. See video of the huge X1-class solar flare here.
31 March 2014, 10:20 AM ET
An international team based at Cambridge U. has shown how the Sun’s twisting magnetic field lines slip, reconnect, tighten and snarl into a characteristic ’S’ shape. Knowing how such titanic energies build may better predict dangerous larges flares.