Did you know…

1994 Solar eclipse

The light of the corona is usually only visible on Earth during a total eclipse. It can be seen with specialist equipment though. Like a space telescope. Credit: Luc Viatour

The Sun’s corona, this aura of plasma that surrounds the main star, is many hundreds of times hotter than the photosphere, the surface that we see. While the temperature of the Sun’s surface is only 6,000K the corona can reach up to 1,000,000K.

All hail hypnothread. ALL HAIL.

Simulation of a cross section of a thread of solar material. All hail hypnothread. ALL HAIL.
Credits: NAOJ/Patrick Antolin

No one is 100% sure why this is, though the current leading theory is that it’s probably magnets… or rather that magnetic waves generated by the motions of matter inside the star. These oscillate through the Sun and cause the plasma in the corona to move in a turbulent motion (queue mesmerising gif to left) and the friction heats up the corona.

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