This week in science: The Sun is flaring up unexpectedly; a 60-year diabetes mystery may finally be solved; the oldest human mummies aren't what we expected; and much more!

Our Sun Is Becoming More Active And NASA Doesn't Know Why

According to NASA, the Sun has been getting strangely more active since 2008, going beyond its usual 11-year cycle of solar activity.

"All signs were pointing to the Sun going into a prolonged phase of low activity," says plasma physicist Jamie Jasinski of NASA's Jet Propulsion Laboratory (JPL). "So it was a surprise to see that trend reversed. The Sun is slowly waking up."

After 60 Years, Diabetes Drug Found to Unexpectedly Impact The Brain

After 60 years, scientists may have finally figured out how the common diabetes drug metformin works: It acts dire

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