Uncategorized

  1. Space

    The nearest single star to Earth has four small planets

    Last year, astronomers announced that a planet orbits Barnard’s star. Now, researchers have confirmed the existence of three more.

    By Lisa Grossman
  2. Space

    Two astronauts stuck in space for 9 months have returned to Earth

    Astronauts Suni Williams and Butch Wilmore’s extended stay in the International Space Station will add to what we know about how space affects health.

    By McKenzie Prillaman
  3. Cosmology

    New baby pictures of the universe deepen a cosmic mystery

    Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

    By Lisa Grossman
  4. Animals

    Some of Sydney’s koalas are chlamydia-free, but still at risk

    Southwestern Sydney's koalas have avoided the chlamydia outbreak threatening the entire species.