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 .

2025年3月17日 · Solar flares and CMEs are the most powerful explosions in our solar system. This animation shows how coronal mass ejections can blow out from the Sun, interfere with Earth’s magnetic fields (the curved purple lines), and cause auroras (the blue rings of light circling the North and South poles).

Solar flares are large eruptions of electromagnetic radiation from the Sun lasting from minutes to hours. The sudden outburst of electromagnetic energy travels at the speed of light, therefore any effect upon the sunlit side of Earth’s exposed outer atmosphere occurs at the same time the event is …

2024年11月2日 · 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 ...

2024年10月28日 · Solar flares are powerful bursts of energy. Flares and solar eruptions can impact radio communications, electric power grids, navigation signals, and pose risks to spacecraft and astronauts. This flare is classified as an X1.8 class flare. X-class denotes the most intense flares, while the number provides more information about its strength.

2025年1月10日 · 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...

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2025年3月10日 · Solar flares are bursts of radiation from the sun’s surface, sometimes followed by a bubble of magnetized plasma particles called a coronal mass ejection (CME). If they happen to spray out in ...

2025年1月6日 · 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 …