**Astronomy Picture of the Day**

原始 JSON

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  "id": "16d87e7646e9f80cc15d59d03f36ff36f88fcfeab5360f96ba27754f502a31f0",
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  "content": "**Astronomy Picture of the Day**\n\n24 June 2026\n\n**SDO Observes a Coronal Mass Ejection**\n\nVideo: https://apod.nasa.gov/apod/image/2606/sdo_cme.mp4\n\nVideo Credit: NASA , SDO , AIA ; Processing: Richard Petarius III ( MTU ) Text: Keighley Rockcliffe ( NASA GSFC , UMBC CSST , CRESST II )\n\nWhy does the Sun throw stuff at us? The Sun’s surface is a churning soup of energetic electrons and ions called plasma . The motion of those charged particles creates magnetic field loops that are larger than the Earth . These loops twist, turn, and trap plasma. The featured time-lapse, taken over 2 hours on April 24th, 2026 by the Solar Dynamics Observatory , shows what happens when those magnetic fields become too stressed: they snap and expel billions of tons (trillions of kilograms) of plasma into space at millions of miles (or kilometers) per hour in what is called a coronal mass ejection (CME). The Sun releases a few CMEs each day when it is at the peak of its activity cycle , which passed in 2025. Some of these eruptions hit Earth and can disrupt power grids, disable satellites, and endanger astronauts, which is why space weather monitoring is so important.\n\n#APOD #SDO #SolarDynamicsObservatory #CME #CoronalMassEjection #SolarPhysics\n\nhttps://apod.nasa.gov/apod/ap260624.html\n",
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