NASA spacecraft enters the Sun's corona for the first time

Stefan Mileschin · 16th December 2021, 13:54

The Parker Solar Probe has become the first spacecraft to fly through the Sun's upper atmosphere or corona, NASA announced. In April, it passed within 15 solar radii (around 6.5 million miles) from the Sun's surface in a region where magnetic fields dominate solar conditions. "Parker Solar Probe 'touching the Sun' is a monumental moment for solar science and a truly remarkable feat," said NASA associate administrator Thomas Zurbuchen.

The Sun has a superheated atmosphere called the corona (visible from Earth only during a solar eclipse) that's bound to it by gravity and magnetic fields. At a certain limit called the Alfvén critical surface, materials are able to escape those forces and become part of the solar wind, permanently severing their connection to the Sun.

https://www.engadget.com/parker-sola...5.html?src=rss

16th December 2021, 13:54	#1
Stefan Mileschin [M] Reviewer Join Date: May 2010 Location: Romania Posts: 153,575	NASA spacecraft enters the Sun's corona for the first time The Parker Solar Probe has become the first spacecraft to fly through the Sun's upper atmosphere or corona, NASA announced. In April, it passed within 15 solar radii (around 6.5 million miles) from the Sun's surface in a region where magnetic fields dominate solar conditions. "Parker Solar Probe 'touching the Sun' is a monumental moment for solar science and a truly remarkable feat," said NASA associate administrator Thomas Zurbuchen. The Sun has a superheated atmosphere called the corona (visible from Earth only during a solar eclipse) that's bound to it by gravity and magnetic fields. At a certain limit called the Alfvén critical surface, materials are able to escape those forces and become part of the solar wind, permanently severing their connection to the Sun. https://www.engadget.com/parker-sola...5.html?src=rss

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