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Original file (WebM audio/video file, VP9/Opus, length 50 s, 1,920 × 1,080 pixels, 8.65 Mbps overall, file size: 51.59 MB)
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Summary
| Description |
English: Parker Solar Probe has now “touched the Sun”, passing through the Sun’s outer atmosphere, the corona for the first time in April 2021. The boundary that marks the edge of the corona is the Alfvén critical surface. Inside that surface (circle at left), plasma is connected to the Sun by waves that travel back and forth to the surface. Beyond it (circle at right), the Sun’s magnetic fields and gravity are too weak to contain the plasma and it becomes the solar wind, racing across the solar system so fast that waves within the wind cannot ever travel fast enough to make it back to the Sun. |
| Date | December 14, 2021 |
| Source | https://svs.gsfc.nasa.gov/14036 |
| Author | NASA/Johns Hopkins APL/Ben Smith |
Licensing
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:42, 30 July 2022 | 50 s, 1,920 × 1,080 (51.59 MB) | Artem.G | Uploaded a work by NASA/Johns Hopkins APL/Ben Smith from https://svs.gsfc.nasa.gov/14036 with UploadWizard |
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