Thursday, September 28, 2017

A big solar flare

According to a report in Scientific American there has been a big solar flare - the biggest in 12 years.
"The Sun's level of activity goes up and down in an 11-year cycle: sometimes it produces a ton of large flares, and sometimes it's pretty quiet. Every solar cycle, the Sun delivers a few standout punches. This current solar cycle, however, is the quietest in the last 100 years. It's pretty notable that such a large flare came out of such a calm period."

Questions for discussion: what is a solar flare? Why are they important to us?
See also Wikipedia.

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