News

  1. Astronomy

    Neutron stars may not be as squishy as some scientists thought

    NASA’s NICER X-ray telescope finds that the most massive known neutron star has an unexpectedly large diameter.

    By Emily Conover
  2. Health & Medicine

    Here’s what we know about B.1.1.7, the U.S.’s dominant coronavirus strain

    Studies show the variant is more contagious and may cause more severe COVID-19 overall. But vaccines still work against B.1.1.7.

    By Erin Garcia de Jesús
  3. Planetary Science

    NASA’s Ingenuity helicopter made history by flying on Mars

    An autonomous helicopter just lifted itself into the air on Mars, marking the first time a vehicle has flown on a planet other than Earth.

    By Lisa Grossman
  4. Planetary Science

    How the laws of physics constrain the size of alien raindrops

    Physics limits the size of raindrops, no matter what they’re made of or what planet they fall on.