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Showing posts with label solar activity. Show all posts
Showing posts with label solar activity. Show all posts
Thursday, October 28, 2021

X-class flare at 1555 UTC (11:55 am ET)

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Active region 12887 emitted an X-class flare today at 1555 UTC. There also appears to be a filament eruption (the precursor to a coronal mas...
Tuesday, June 26, 2018

Annie Scott Dill Maunder, Solar Physicist

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The Royal Greenwich Observatory (RGO) dedicated a new telescope on June 25, 2018 , returning a tradition of observations to London. The tele...
Wednesday, June 19, 2013

What is space weather and what research is SDO doing with space weather?

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Space weather is (1) the study of eruptive solar activity (solar storms) such as solar flares, coronal mass ejections, solar energetic part...
Monday, June 18, 2012

New Picture of the Week

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Twin M-class Solar Flares Although visually it only looks like a single flare, sensitive scientific instrumen...
Thursday, October 6, 2011

German-American Day 2011 and the Discovery of the Solar Cycle

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Today, October 6, 2011, is German-American Day, when we celebrate the arrival of German immigrants in Philadelphia in 1683. Germans have wor...
Tuesday, October 26, 2010

A lively active region

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With a large active region currently in the northern hemisphere of the Sun, there has been a flurry of small solar flares over the past day....
Tuesday, August 10, 2010

Solar Cycle 24 in the Southern Hemisphere?

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Solar Cycle 24 is starting to come alive and show active regions, sunspots, flares, and CMEs. On Sunday AR 11093, the large magnetic complex...
Thursday, July 8, 2010

Check Out Our Images!

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Now that the AIA and HMI data are flowing through the data system, you can look at images of the Sun and make movies of the Sun. Check out t...
Monday, July 5, 2010

SDO on Science Friday

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SDO was featured in a video on NPR's Science Friday website ( www.ScienceFriday.com ). We described the Sun's magnetic field, the ri...