News

  1. Planetary Science

    Asteroid impacts may explain Venus’ missing oxygen

    Asteroid impacts on Venus might have helped sequester oxygen left behind when Earth’s sister planet lost its water, new simulations show.

    By Christopher Crockett
  2. Health & Medicine

    Less vitamin D and melatonin bad for multiple sclerosis

    Vitamin D and melatonin play important roles in multiple sclerosis.

    By Sarah Schwartz
  3. Life

    Humans adjust walking style for energy efficiency

    Humans can adjust their steps to walk in a way that uses the least amount of energy.

    By Meghan Rosen
  4. Anthropology

    Fossils suggest new species from human genus

    Undated South African cave fossils may reveal a new species in the human genus.