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NASA’s Parker Solar Probe “Hears” the Sun! 🔊☀️

All day Astronomy

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23,094 次观看 • 1 年前 •via X (Twitter)

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Flashlights and lasers in space? 💥 During a solar flyby, NASA’s Parker Solar Probe made a surprising discovery about high-speed particles accelerated by explosive events on the Sun: Protons spread out like a flashlight beam 🔦 Heavy ions shoot out straight like a laser ⚡ This unexpected data is hinting at the power source behind solar storms that disrupt tech on Earth. More:

Flashlights and lasers in space? 💥 During a solar flyby, NASA’s Parker Solar Probe made a surprising discovery about high-speed particles accelerated by explosive events on the Sun: Protons spread out like a flashlight beam 🔦 Heavy ions shoot out straight like a laser ⚡ This unexpected data is hinting at the power source behind solar storms that disrupt tech on Earth. More:

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NASA's first successful recording of video and audio of The Sun's solar video captured by the Parker Solar Probe

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The fastest human-made object ever: NASA's Parker Solar Probe (120 miles per second), today flies closer to the Sun than we've ever been. Learning about our star

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Fun fact. NASA's Parker Solar Probe survived its closest ever approach to the Sun. It broke its previous record by flying just 3.8 million miles above the surface of the Sun, and it hurtled through the solar atmosphere at a blazing 430,000 miles per hour

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The Parker Solar Probe is the only man-made object to touch the sun! Watch as it passes through a Coronal Mass Ejection (CME). The probe is equipped with a heat shield made of carbon-carbon composite, able to withstand 2,500° F.

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NASA's Parker Solar Probe is the first ever to record sounds from the suns atmosphere . Sounds terrifying 😳

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🚨: THE SUN JUST WENT BLACK ON NASA’S MONITOR The SDO (Solar Dynamics Observatory) — the spacecraft that monitors the Sun — briefly shows the Sun going completely black in this footage from just hours ago. Surely it’s just a “glitch.”

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🚨 PARKER SOLAR PROBE JUST FOUND HIGH-ENERGY PARTICLES NEAR THE SUN THAT NO MODEL PREDICTED AND WE DON’T KNOW HOW THEY GOT SO ENERGETIC. During its close passes through the solar corona, NASA’s Parker Solar Probe detected protons accelerated to energies around 400 keV roughly 1,000 times higher than current models of magnetic reconnection at the heliospheric current sheet could explain. The particles appear to be trapped and energized inside magnetic islands that form and merge during reconnection events at the current sheet (the vast surface where the Sun’s magnetic field flips polarity). This mechanism was not expected to produce such high energies so close to the Sun. Why this matters: • It reveals a previously unknown or underestimated source of energetic particles right in the solar corona • Existing models of solar energetic particles have focused mainly on shocks from coronal mass ejections — this suggests reconnection can also be a powerful accelerator • The same process may be contributing more to coronal heating than previously calculated • It has implications for space weather forecasting, since these particles can affect spacecraft and astronauts The deeper implication: Parker is showing us that the physics of the near-Sun environment is more energetic and complex than our models assumed. Magnetic reconnection long known as an important process appears capable of accelerating particles to surprisingly high energies through the merging of magnetic islands. This doesn’t just tweak our understanding of the Sun; it may force revisions in how we model particle acceleration across many astrophysical environments. We’re still in the early stages of understanding what Parker is revealing, but it’s already clear that the corona is more violent and dynamic than we thought. How do you think this discovery might change our models of space weather or solar physics in the coming years? Follow for more updates from Parker Solar Probe and the evolving picture of our Sun.

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