A third and fourth flare have erupted from sunspot 1283. The third came on September 7 at 6:36 PM ET, and was categorized as an X1.8 by the GOES spacecraft, making it the second X-class flare within 24 hours.
Space Exploration
Sep 8, 2011
10
0
Modeling of an extreme space weather event that narrowly missed Earth in 2012 shows it could have been even worse if paired with another event.
Astronomy
Sep 29, 2020
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145
Thanks to close-up images of the sun obtained during Solar Orbiter's perihelion passage of October 2022, solar physicists have seen how fleeting magnetic fields at the solar surface build up into the solar atmosphere.
Astronomy
Oct 5, 2023
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41
NASA's Psyche spacecraft is on a roll. In the eight weeks since it left Earth on Oct. 13, the orbiter has performed one successful operation after another, powering on scientific instruments, streaming data toward home, and ...
Astronomy
Dec 6, 2023
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11
The sun erupted over the weekend, flinging electromagnetic radiation towards Earth, even illuminating skies with spectacular aurora borealis. For the first time, ESA's unlikely space weather duo of SMOS and Swarm tracked ...
Astronomy
Mar 26, 2024
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42
The ESA-led Solar Orbiter mission has experienced its second close encounter with the sun. It is delivering more stunning data, and at higher resolution than ever before.
Astronomy
Oct 27, 2022
0
42
Is the sun trying to send a message? A pair of giant filaments on the face of the sun have formed what appears to be an enormous arrow pointing to the right. If straightened out, each filament would be about as long as the ...
Space Exploration
May 29, 2015
1
135
On Nov. 9, 2015, NASA's Solar and Terrestrial Relations Observatory Ahead, or STEREO-A, once again began transmitting data at its full rate. For the previous year, STEREO-A was transmitting only a weak signal—or occasionally ...
Space Exploration
Nov 19, 2015
0
32
In early September 1859, the Northern Lights could suddenly be seen as far south as the Caribbean. The cause was a geomagnetic solar storm—specifically a coronal mass ejection, now dubbed the Carrington Event, after the ...
Planetary Sciences
Nov 23, 2022
0
50
On Nov. 20, 2012, at 7:09 a.m. EST, the sun erupted with a coronal mass ejection or CME. Not to be confused with a solar flare, a CME is a solar phenomenon that can send solar particles into space and can reach Earth one ...
Space Exploration
Nov 20, 2012
0
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