The Presidential Daily Brief


  1. Galaxy

    Milky Way Neighbors Are Among Oldest Galaxies

    A “serendipitous discovery” by an international team of scientists has revealed that dwarf galaxies orbiting our own could be, at more than 13 billion years old, some of the oldest in the universe. The researchers were counting small galaxies when they found that light from the star clusters could be reliably used to judge their age. They’ll now turn to studying these dwarf galaxies — formed at the end of what astrophysicists call the Dark Ages, just 380,000 years after the Big Bang — to learn more about early galaxy formation.

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