News

  1. Astronomy

    Here are the James Webb Space Telescope’s stunning first pictures

    President Biden revealed the NASA telescope's image of ancient galaxies whose light has been traveling 13 billion years to reach us.

    By Lisa Grossman
  2. Physics

    Wiggling metal beams offer a new way to test gravity’s strength

    A new experiment aims to get a better handle on “Big G,” the poorly measured gravitational constant.

    By Emily Conover
  3. Health & Medicine

    The flowery scent of a Zika or dengue infection lures mosquitoes

    Mice and humans infected with dengue emit acetophenone, attracting bloodsucking mosquitoes that could then transmit the viruses to new hosts.

    By Erin Garcia de Jesús
  4. Astronomy

    Sand clouds are common in atmospheres of brown dwarfs

    Dozens of newly examined brown dwarfs have clouds of silicates, confirming an old theory and revealing how these failed stars live.