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  1. Genetics

    Ancient DNA tests the notion that allergies are due to our dirtier past

    An analysis of ancient DNA and modern disease risk suggests some immune genes may reduce allergy risk rather than increase it.

    By Elie Dolgin
  2. Physics

    The secret to perfect espresso? It’s physics

    Inspired by gas and liquid flow in earth science, researchers brewed an equation to calculate the speed of water percolation through ground coffee.

    By Taylor Mitchell Brown
  3. Animals

    Giant, kraken-like octopuses may have ruled the Cretaceous deep

    Some octopuses that lived over 72 million years ago were as long as whales. These huge predators may have been the largest invertebrates ever.

    By Jake Buehler
  4. Astronomy

    Clouds of water ice thread stellar nurseries in the Milky Way

    NASA’s SPHEREx mapped water ice across vast regions of the galaxy, confirming that an essential molecule for life on Earth abounds in space.