Why is the Sun's million-degree corona, or outermost atmosphere, so much hotter than the Sun's surface? This question has baffled astronomers for decades. Today, a team led by Paola Testa of the Harvard-Smithsonian Center ...
Space Exploration
Oct 16, 2014
55
0
On April 23, NASA's Swift satellite detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star. The initial blast from this record-setting series of explosions was ...
Space Exploration
Sep 30, 2014
0
0
Strong solar flares can bring down communications and power grids on Earth. By demonstrating how these gigantic eruptions are caused, ETH physicists are laying the foundations for future predictions.
Space Exploration
Sep 24, 2014
0
0
This is a question we are often asked: what is the difference between a coronal mass ejection (CME) and a solar flare? We discussed it in a recent astrophoto post, but today NASA put out a video with amazing graphics that ...
Space Exploration
Sep 23, 2014
0
0
A public consultation on space weather, an area of interest to many RAS Fellows, is currently under way.
Space Exploration
Sep 23, 2014
1
1
On Sept. 10, 2014, NASA's newest solar observatory, the Interface Region Imaging Spectrograph, or IRIS, mission joined other telescopes to witness an X-class flare – an example of one of the strongest solar flares—on ...
Space Exploration
Sep 17, 2014
0
0
A strong solar flare is blasting its way to Earth, but the worst of its power looks like it will barely skim above the planet and not cause many problems.
Space Exploration
Sep 10, 2014
80
0
The sun emitted a significant solar flare, peaking at 1:48 p.m. EDT on Sept. 10, 2014. NASA's Solar Dynamics Observatory captured images of the event.
Space Exploration
Sep 10, 2014
0
0
On Aug. 24, 2014, the sun emitted a mid-level solar flare, peaking at 8:16 a.m. EDT.
Space Exploration
Aug 27, 2014
0
0
While this solar peak has been weaker than usual, from time to time we get a moderate punch from the Sun. Here's an example—what NASA calls a "mid-level" solar flare blasting off the Sun at 8:16 a.m. EDT (1:16 p.m. UTC) ...
Space Exploration
Aug 26, 2014
0
0
