A Vanishing Sunspot# Astronomy - 天文
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http://sciencenow.sciencemag.org/cgi/content/full/2002/1203/1
A Vanishing Sunspot
The seething surface of the sun has conjured a disappearing act. A continent-sized sunspot vanished
within an hour of a solar flare earlier this year, marking the first time scientists have seen a spot fade so
quickly. The event will force theorists to explain how flares can unleash energy in such rapid bursts.
Sunspots mark the roots of
A Vanishing Sunspot
The seething surface of the sun has conjured a disappearing act. A continent-sized sunspot vanished
within an hour of a solar flare earlier this year, marking the first time scientists have seen a spot fade so
quickly. The event will force theorists to explain how flares can unleash energy in such rapid bursts.
Sunspots mark the roots of