News

  1. Astronomy

    The Milky Way’s central black hole may have turned nearby red giant stars blue

    A powerful blast from the supermassive black hole at the Milky Way’s center may explain the lack of large, red stars there.

    By Ken Croswell
  2. Health & Medicine

    The FDA has authorized Pfizer’s COVID-19 vaccine. Now what?

    It’s the first to win emergency use approval in the United States.

    By Tina Hesman Saey
  3. Animals

    Using comb-shaped teeth, Baikal seals feed on tiny crustaceans like whales do

    Seals in Lake Baikal use comb-shaped teeth to catch scores of amphipods, a study finds. The diet may be behind the seals’ relative success.

    By Jake Buehler
  4. Health & Medicine

    Experts recommend the FDA approve Pfizer’s COVID-19 vaccine for emergency use

    Pfizer-BioNTech’s COVID-19 vaccine is one step closer to emergency use authorization in the United States.