Tag: The Sun

Tiny plasma jets on the sun drive the elusive solar wind, Europe’s Solar Orbiter reveals

NeRD

Solar scientists have found tiny, short-lived jets of energy on our sun to be the primary drivers of the solar wind, marking a step toward decoding our star’s elusive behavior and, eventually, refining predictions of its storms. The “solar wind” refers to pockets of energetic particles blasted out from the sun. These particles are occasionally directed toward Earth, like last summer when a rare cluster of such storms rained on our planet and sparked breathtaking auroras across the globe — likely the strongest auroras we’ve seen in centuries. The solar…

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NASA CubeSat Finds New Radiation Belts After May 2024 Solar Storm

NeRD

5 min read NASA CubeSat Finds New Radiation Belts After May 2024 Solar Storm Key Points The May 2024 solar storm created two new temporary belts of high-energy particles surrounding Earth. Such belts have been seen before, but the new ones were particularly long lasting, especially the new proton belt.  The findings are particularly important for spacecraft launching into geostationary orbits, which can be damaged as they traverse the dangerous belts. The largest solar storm in two decades hit Earth in May 2024. For several days, wave after wave of…

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Invisible ‘flickering’ on the sun could predict potentially dangerous solar flares hours in advance

NeRD

Shining loops of plasma on the surface of the sun “flicker” hours before they unleash potentially dangerous solar flares, a new study shows. The new findings could help create more reliable space weather forecasts, researchers say. Solar flares are violent outbursts of electromagnetic radiation that shoot from the sun when invisible magnetic field lines at the sun’s surface get twisted up until they eventually snap. These outbursts most commonly occur around sunspots — dark patches where magnetic field lines poke through our home star’s surface — and often pull up…

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NASA Solar Observatory Sees Coronal Loops Flicker Before Big Flares

NeRD

3 min read NASA Solar Observatory Sees Coronal Loops Flicker Before Big Flares For decades, scientists have tried in vain to accurately predict solar flares — intense bursts of light on the Sun that can send a flurry of charged particles into the solar system. Now, using NASA’s Solar Dynamics Observatory, one team has identified flickering loops in the solar atmosphere, or corona, that seem to signal when the Sun is about to unleash a large flare. These warning signs could help NASA and other stakeholders protect astronauts as well…

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Scientists turn 3 years’ worth of solar flares into audible sound (video)

NeRD

If you’re more of an auditory learner than a visual one, this timelapse video is for you. (And, well, visual learners will probably love it, too!) The European Space Agency (ESA) has released an audio-visual representation of solar activity over the last three years, pulling data from its Solar Orbiter probe, which it runs with NASA. In the video, we see blue circles popping up across the surface of the sun — and audible tones paired with each of these circles. As time progresses toward the present day, the frequency…

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NASA’s LEXI Will Provide X-Ray Vision of Earth’s Magnetosphere

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5 min read NASA’s LEXI Will Provide X-Ray Vision of Earth’s Magnetosphere A NASA X-ray imager is heading to the Moon as part of NASA’s Artemis campaign, where it will capture the first global images of the magnetic field that shields Earth from solar radiation. The Lunar Environment Heliospheric X-ray Imager, or LEXI, instrument is one of 10 payloads aboard the next lunar delivery through NASA’s CLPS (Commercial Lunar Payload Services) initiative, set to launch from the agency’s Kennedy Space Center in Florida no earlier than mid-January, with Firefly Aerospace’s Blue Ghost…

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Sun erupts with powerful X1.2 solar flare, causes radio blackouts (photo)

NeRD

The sun started 2025 with a bang as it fired off a powerful solar flare this morning. The X-class solar flare peaked at an X.12 at 6:40 a.m. EST (1140 GMT) on Friday (Jan. 3), releasing a blast of energy from a sunspot region known as AR 3947 and triggering a radio blackout event for parts of the Southern Atlantic, Africa and parts of eastern South America. When these blackouts happen, they can result in a full or partial loss of high frequency (HF) radio signals in regions that are…

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NASA’s Parker Solar Probe Makes History With Closest Pass to Sun

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5 Min Read NASA’s Parker Solar Probe Makes History With Closest Pass to Sun An artist’s concept showing Parker Solar Probe. Credits: NASA/APL Operations teams have confirmed NASA’s mission to “touch” the Sun survived its record-breaking closest approach to the solar surface on Dec. 24, 2024. Breaking its previous record by flying just 3.8 million miles above the surface of the Sun, NASA’s Parker Solar Probe hurtled through the solar atmosphere at a blazing 430,000 miles per hour — faster than any human-made object has ever moved. A beacon tone…

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Christmas solar flares erupt from the sun. Will they trigger aurora ‘fireworks’ as we close out 2024?

NeRD

In the final hours of Christmas Day, the sun fired off four solar flares within less than three hours. The biggest flare of the series, recorded at a M7.3, erupted from sunspot region AR3938 on Dec. 25 at 10:15 p,m. EST (0315 GMT on Dec. 26). Solar flares are ranked and categorized by their power on a 4-level classification scale, with M-class the second strongest to the beastly X-class at the top. According to Spaceweather.com, this was part of a group of four different flares that happened within two and…

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Scientists await signal from NASA’s Parker Solar Probe after historic close sun flyby. Will it phone home?

NeRD

On the heels of a NASA spacecraft’s historic close flyby of the sun on Christmas Eve, scientists on Earth have one question on their minds: Did their probe survive as an epic Christmas gift, or is it a burned up lump of coal in space? For a few days, they simply won’t know, at least not until the spacecraft — NASA’s Parker Solar Probe — phones home with a simple “status beacon” on Friday (Dec. 27) to let its science team know it’s okay. But scientists behind the spacecraft’s sun…

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