News

  1. Astronomy

    An arc of galaxies 3 billion light-years long may challenge cosmology

    Dubbed “the Giant Arc,” the purported structure is much larger than expected in a cosmos where matter is thought to be evenly distributed.

    By Lisa Grossman
  2. Earth

    Scientists have found the origins of a mysterious, deadly flood in India

    A landslide of rock and ice caused the deadly flood that washed out two hydroelectric power plants in an Indian Himalayan state in February.

    By Carolyn Gramling
  3. Particle Physics

    Physicists dream big with an idea for a particle collider on the moon

    A lunar particle collider that dwarfs any such facility on Earth might not be impossible, according to new calculations.