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The Universe: Universe Structure

  • Featured Article

    Galaxies in the Early Universe

    About ten years ago, astronomers using new submillimeter wavelength facilities discovered the existence of a new class of very distant galaxies. These objects are located so far away that their light...

  • Featured Blog Post

    Notes from the Astronomy Underground- Astropalooza

      According to the tagline in Ridley Scott’s 1979 blockbuster Alien, “In space, no one can hear you scream.” It’s true that sound waves, unlike light, need a medium- some kind of...

Latest News

LIGO Listens for Gravitational Echoes of the Birth of the Universe

Caltech, Pasadena, CA (Aug. 19. 2009) – An investigation by the LIGO (Laser Interferometer Gravitational-Wave Observatory) Scientific Collaboration and the Virgo Collaboration has significantly...