Uncategorized

  1. Animals

    Shortcut to Big Heart: Pythons build cardiac muscle in record time

    A Burmese python can boost its cardiac fitness—by bulking up its heart muscle 40 percent in two days—just by eating.

    By Susan Milius
  2. Astronomy

    Nursery Pictures: Astronomers glimpse primordial clustering

    Astronomers have found the earliest traces of galaxy clustering, from a period just 1 billion years after the birth of the universe.

    By David Shiga
  3. Earth

    Warm Spell: Arctic algae record shift in climate

    Analyses of sediment samples taken from remote arctic lakes indicate that the climate across large swaths of the Northern Hemisphere has been warming for many decades.

    By Sid Perkins
  4. Health & Medicine

    Measuring HIV’s Cost: Treatment adds years, but many still miss out

    Medical care for people infected with HIV has already saved about 2 million years of life in the United States, but more than 200,000 HIV-infected Americans are not benefiting from drugs that could extend their lives.