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    the universe

    An example of a galaxy group, in this case the Copeland Septet.
    The universe might be younger than we thought, galaxies' motion suggests

    We think the universe is 13.8 billion years old, but could we be wrong? A new study of bound galaxies offers an unexplored clue.

    • A composite image of the Bullet Cluster, a much-studied pair of galaxy clusters that have collided head on. One has passed through the other, like a bullet traveling through an apple, and is thought to show clear signs of dark matter (blue) separated from hot gases (pink).
      The 1st life in the universe could have formed seconds after the Big Bang

      The first life-forms capable of evolution could have appeared just moments after the Big Bang, a physicist explains.

      By Paul Sutter Published 12 December 23

    • Star explosion in a galaxy of an unknown universe.
      Largest-ever simulation of the universe reveals 'shortcomings' in standard model of cosmology

      Scientists made a twin version of our universe, showing the evolution of all forms of matter and energy, in the biggest cosmological computer simulation to date.

      By Sharmila Kuthunur Published 26 October 23

    • Researchers have found that lines of energy can be used to describe the universe.
      Fragments of energy may be the fundamental building blocks of the universe

      Matter is what makes up the universe, but what makes up matter?

      By Larry M. Silverberg Published 10 December 20

    • The milky way galaxy
      Spaced Out: Majority of Gen X Can't Identify Home Galaxy

      Could you identify our home galaxy in an image?

      By Jeanna Bryner Published 23 October 12

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