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  1. Physics

    Science explains why shouting into the wind seems futile

    Sending a sound upwind, against the flow of air, makes the sound louder due to an acoustical effect called convective amplification. Sound sent downwind is quieter.

    By Emily Conover
  2. Tech

    A flower-shaped soft robot could make brain monitoring less invasive

    Once inserted in the skull, the device unfurls flexible sensors that can monitor the brain's electrical activity less invasively than current methods.

    By Bob Hirshon
  3. Life

    The new human pangenome could help unveil the biology of everyone

    The deciphered DNA includes never-before-explored parts of the genome and better represents the genetic diversity of all humans.

    By Tina Hesman Saey
  4. Life

    Ancient giant eruptions may have seeded nitrogen needed for life

    A new study bolsters the idea that on the young Earth volcanic lightning may have provided some materials that made it possible for life to emerge.