Uncategorized

  1. Plants

    Bittersweet fruits

    A new study provides strong evidence that fruits harm predators with the same chemicals that, for example, give chili peppers their spice.

    By Rachel Ehrenberg
  2. Health & Medicine

    Running interference on cholesterol

    Injected RNA molecule lowers LDL in rats and monkeys.

    By Patrick Barry
  3. Life

    Humans aided, constrained by fossil fuels

    Maintaining long-term population will require alternate energy sources.

    By Sid Perkins
  4. Space

    Magellanic firestorm

    To celebrate the Hubble Space Telescope’s 100,000th orbit about Earth, astronomers aimed the observatory at a firestorm of stellar activity in the Large Magellanic Cloud, a satellite galaxy of the Milky Way.

    By Ron Cowen
  5. Physics

    Invisibility within sight

    Two new studies take steps toward practical materials that can bend light backward, which could lead to invisibility cloaks.