Parker Solar Probe maps shifting, spiky boundary where the solar wind originates

Parker Solar Probe has mapped a shifting, spiky boundary that marks where the solar wind is born, and its latest orbits show the spacecraft dives deeper into that region on each pass. The in situ measurements define fine-scale structure of the solar wind source region.

Discovered 2025-12-15T08:03:50.458887-08:00 | 2025-12-15T08:03:50.458887-08:00

Briefing

What Hype is tracking

  • Parker Solar Probe's in situ mapping identifies a shifting, spiky boundary at the birthplace of the solar wind and confirms the probe penetrates that region on each perihelion pass.
  • These measurements provide ground truth for remote and stereoscopic observations, such as those from the Inouye Solar Telescope and Solar Orbiter, and complement recent launches of IMAP and NOAA/NASA probes aimed at sharpening space‑weather warnings.

Reported By

Science Alert Live Science Space.com
Sources Tracked
3
First Seen
2025-12-15T08:03:50.458887-08:00
Latest Update
2025-12-20T10:09:50.240401-08:00
Coverage
Space

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