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  1. Physics

    Here’s what causes the aurora-like glow known as STEVE

    Amateur astronomer images and satellite data are revealing what causes the strange atmospheric glow called STEVE.

    By Maria Temming
  2. Health & Medicine

    How holes in herd immunity led to a 25-year high in U.S. measles cases

    U.S. measles cases have surged to 704. Outbreaks reveal pockets of vulnerability where too many unvaccinated people are helping the virus spread.

    By Aimee Cunningham
  3. Science & Society

    A science-themed escape room gives the brain a workout

    Quantum physicist Paul Kwiat reveals what it takes do well in LabEscape, his science-themed escape room.

    By Emily Conover
  4. Animals

    How aphids sacrifice themselves to fix their homes with fatty goo

    Young aphids swollen with fatty substances save their colony by self-sacrifice, using that goo to patch breaches in the wall of their tree home.