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
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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
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The first images from the Solar Ultraviolet Imager (SUVI) instrument aboard the National Oceanic and Atmospheric Administration's GOES-16 satellite capture a large coronal hole on the sun.
Space Exploration
Apr 4, 2017
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(Phys.org)—On Nov. 13, 2012, the sun emitted a mid-level solar flare, peaking at 9:04 p.m. EST.
Space Exploration
Nov 13, 2012
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Geomagnetic activity caused by our star recently created a stir in the skies over Iceland, resulting in the seeming electrification of the night, as captured here by photographer Ollie Taylor.
Space Exploration
Feb 22, 2019
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What's better at blocking sunlight: a traditional flat occulter disk or a beach ball?
Space Exploration
Nov 10, 2015
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The Solar Ultraviolet Imager, or SUVI, onboard NOAA's GOES-18 satellite, which launched on March 1, 2022, began observing the sun on June 24, 2022. SUVI monitors the sun in the extreme ultraviolet portion of the electromagnetic ...
Astronomy
Jul 21, 2022
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10
On March 17, 2013, at 1:28 a.m. EDT, the coronal mass ejection (CME) from March 15 passed by NASA's Advanced Composition Explorer (ACE) as it approached Earth. Upon interacting with the giant magnetic bubble surrounding Earth, ...
Space Exploration
Mar 18, 2013
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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
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The Marshall Grazing Incidence X-ray Spectrometer, or MaGIXS, mission is about to take flight. The launch window opens at the White Sands Missile Range in New Mexico on July 30.
Space Exploration
Jul 29, 2021
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