Uncategorized

  1. Astronomy

    New ideas about how stars die help solve a decades-old mystery

    New ideas about stellar evolution help explain why astronomers see so many bright planetary nebulae where they ought not be.

    By Maria Temming
  2. Climate

    Globetrotting tourists are leaving a giant carbon footprint on the Earth

    Globetrotters are responsible for about 8 percent of the world’s greenhouse gas emissions.

    By Carolyn Gramling
  3. Animals

    Here’s how to use DNA to find elusive sharks

    Hard-to-find sharks that divers and cameras miss appear in genetic traces in the ocean.

    By Susan Milius
  4. Tech

    This self-driving car could one day take you on a real road trip

    Most autonomous cars are city drivers.