Leigha Grumbles

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One of California’s riskiest volcanoes is very active. Is an eruption coming?

Volcanic ash billows into the sky during the eruption of Mount Pinatubo in 1991. Laacher See eruption was larger than the 1991 Pinatubo eruption. Credit: The U.S. National Archives. One of California’s riskiest volcanoes has for decades been undergoing geological changes and seismic activity, which are sometimes a precursor to an eruption, but—thankfully—no supervolcanic eruptions

It’s time to start worrying about space junk around the moon, too

Apollo 16 booster impact. Credit: NASA It’s getting crowded up there. An increase in military, commercial and scientific launches, coupled with a lower cost for rideshare cubesat launches, means lots more space junk to deal with in coming years. And we’re not just talking about low Earth orbit; the moon and cis-lunar (near lunar space)

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