News

  1. Animals

    Weather radar shows 30 metric tons of grasshoppers swarmed Las Vegas one night

    Everything’s glitzier in Las Vegas. The most intensely lit U.S. city shows the impact of artificial light on insects on a megascale.

    By Susan Milius
  2. Health & Medicine

    Moderna and Pfizer COVID-19 vaccines may block infection as well as disease

    The mRNA vaccines are about 90 percent effective at blocking coronavirus infection, which could lead to reduced transmission, real-world data suggest.

    By Tina Hesman Saey
  3. Physics

    Uranium ‘snowflakes’ could set off thermonuclear explosions of dead stars

    Uranium crystals that settle in the cores of white dwarfs could trigger nuclear chain reactions that blow the dead stars apart, a new study suggests.