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Space Weather
4:09 PM Here’s the current solar activity from NASA SDO and NOAA/SWPC as of today, March 17, 2026: 🌞 SDO Solar Activity Report — March 17, 2026 Strongest Recent Flare An M2.8 (moderate) solar flare erupted from active EarthSky region AR4392, peaking at 12:15 UTC on March 16. The eruption triggered an R1 (minor) radio blackout over the Atlantic Ocean. Coronal Mass Ejection (CME) The…
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EO: Earth Observatory
Twelve years after the Earth was buffeted by one of the more potent Sun storms in modern history, our nearest star crackled with activity again. A solar flare erupted on July 12, 2012, followed closely by a companion coronal mass ejection (CME)—a cloud of magnetically charged particles and energy that can disturb Earth’s magnetic field,…
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Latest SDO IMage
This image taken by SDO’s AIA instrument at 171 Angstrom shows the current conditions of the quiet corona and upper transition region of the Sun. Active Region 1515 released an M6.9 class flare beginning at 12:23 PM EDT and peaking at 12:32 on July 7, 2012. This region has been the source of much solar…
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Solar Weather
Sunspot 1283 Bristling With Flares: An X1.8 and An M6.7 – UPDATED 09.08.11 The Sun as viewed by the Solar Dynamics Observatory (SDO) in 193 angstrom. The verticle black area near the center is the coronal hole. Credit: NASA/SDO › View larger UPDATE: 09.09.11 – A strong geomagnetic storm is in progress following the…
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Living With A Star
The Living With a Star (LWS) program emphasizes the science necessary to understand those aspects of the Sun and the Earth’s space environment that affect life and society. The ultimate goal is to provide a predictive understanding of the system, and specifically of the space weather conditions at Earth and in the interplanetary medium. LWS…
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Solar Dynamics Observatory
