The sun's atmosphere is hundreds of times hotter than its surface – here's why

Alfvén waves, first proposed 80 years ago, could explain why the sun's atmosphere is so much hotter than its surface.

Huw Morgan, Reader in Physical Sciences, Aberystwyth University • conversation
May 24, 2021 • ~8 min

Life on Earth: why we may have the Moon's now defunct magnetic field to thank for it

The Earth's magnetic field was most likely weaker when life evolved on our planet than it is today.

Jon Mound, Associate Professor of Geophysics, University of Leeds • conversation
Oct. 15, 2020 • ~5 min

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