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  • Showing only topics with the tag "geology". Back to normal view
    1. Twitter thread about Doug Geisler, an astronomy grad student who was at Manastash Ridge Observatory forty years ago when Mount St. Helens exploded 140 miles away

      @emsque: Exactly #40YearsAgo Doug Geisler was asleep atop Manastash Ridge Observatory. An astronomy grad student, he'd just logged his first excellent night at the telescope for his PhD thesis. He was the only person on the summit, ~90 miles from #MountStHelens... #MSH40

      9 votes