Space

  1. Planets

    Melting Snow on Mars

    Melting blankets of snow may have carved out Martian gullies.

    By Emily Sohn
  2. Space

    Zooming In on the Wild Sun

    A close look at the sun reveals a chaotic, ever-changing surface.

    By Sorcha McDonagh
  3. Planets

    A planet’s slim-fast plan

    A planet orbiting very close to its sun can quickly lose weight.

    By Emily Sohn
  4. Space

    Phantom Energy and the Big Rip

    Weird stuff called dark energy could push the universe toward a runaway expansion and ultimate demise about 21 billion years from now.

    By Emily Sohn
  5. Space

    A galaxy far, far, far away

    Astronomers have glimpsed some of the most distant galaxies yet found.

    By Emily Sohn
  6. Space

    Black holes that burp

    Some black holes in outer space may actually spit out as much material as they suck in.

    By Emily Sohn