Astronomers watched how the light brightened and dimmed near the event horizon of the Milky Way's supermassive black hole, ...
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Sun erupts in fifth X-class flare within one month
A cluster of sunspots that rotated into view at the start of the month has fired off its fifth X-class flare. The series of ...
Charles Deehr will never forget his first red aurora. On Feb. 11, 1958, Deehr was a student at Reed College in Portland, ...
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