HS-ESS1-2

Construct an explanation of the Big Bang theory based on astronomical evidence of light spectra, motion of distant galaxies, and composition of matter in the universe.

  1. Planets

    Catching a Comet’s Tail

    A closeup visit by a NASA spacecraft helps show how a comet gets its shape.

    By Sorcha McDonagh
  2. Planets

    A planet from the early universe

    Astronomers have found the oldest and most distant planet known in the universe.

    By Emily Sohn
  3. Space

    A galaxy far, far, far away

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

    By Emily Sohn
  4. 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