Mar 28, 2025 · The Sun emitted a strong solar flare, peaking at 11:21 a.m. ET on Friday, March 28. NASA’s Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event.. NASA’s Solar Dynamics Observatory captured this image of a solar flare — seen as the bright flash on the left side of the Sun — on March 28.

Mar 31, 2025 · Solar flares are classified on a scale of A, B, C, M, and X. Each class is 10 times more powerful than the last, with X-class flares being the most powerful and least frequent.

Apr 1, 2025 · An M5.6 solar flare erupted from sunspot AR4046 on April 1 — now in Earth's strike zone. Could it trigger a geomagnetic storm and northern lights?

What are solar flares? What is a Coronal Mass Ejection (CME)? The plot on this page shows us the most recent 24-hour solar X-ray data from the primary GOES satellite.

A solar flare is a relatively intense, localized emission of electromagnetic radiation in the Sun's atmosphere. Flares occur in active regions and are often, but not always, accompanied by coronal mass ejections, solar particle events, and other eruptive solar phenomena. The occurrence of solar flares varies with the 11-year solar cycle.

Mar 30, 2025 · Space experts are watching a sunspot region known as AR4046 which recently produced a significant solar flare and coronal mass ejection that had the potential to be as significant as the solar storm of Halloween 2003 or the one that occurred in May 2024. In 2003, NASA said at the time the event affected orbiting spacecrafts, disrupted satellite TV and radio services and disrupted some airline ...

Jan 6, 2025 · The Sun emitted a strong solar flare, peaking at 7:48 a.m. ET on Jan. 4, 2025. The National Oceanic and Atmospheric Administration’s Solar Ultraviolet Imager, which watches the Sun constantly, captured an image of the event. Solar flares are powerful bursts of energy. Flares and solar eruptions can impact radio communications, electric power grids, navigation …

Nov 2, 2024 · Solar Flares. A solar flare is an intense burst of radiation, or light, on the Sun. These flashes span the electromagnetic spectrum — including X-rays, gamma rays, radio waves, and ultraviolet and visible light. Solar flares are the most powerful explosions in the solar system — the biggest ones can have as much energy as a billion hydrogen ...

Mar 10, 2025 · Now researchers have used data from NASA’s Solar Dynamics Observatory to show that distinctive flickering in the huge loops of roiling plasma that arch up out of the sun’s atmosphere, called the...

Jan 10, 2025 · On Oct. 3, 2024, an X9 magnitude solar flare — the most powerful of the current cycle — erupted from the sun, launching a CME directly at Earth. (Image credit: NASA/SDO) The effects of the...