Uncategorized

  1. Earth

    Shaked Alaska: A sleepy fault wakes and reveals new links

    One of the most powerful earthquakes ever recorded on U.S. land shook south-central Alaska on Nov. 3, revealing activity along the Denali fault.

    By Carol Marzuola
  2. Physics

    Speedy impacts send microwave distress calls

    Laboratory smash-ups mimicking those between fast-moving space debris and satellites appear to emit microwave bursts, suggesting that microwave detectors might someday prove useful for monitoring the health of spacecraft.

    By Peter Weiss
  3. Animals

    Tadpoles kill by supersuction

    A high-speed video shows tiny African tadpoles that catch their prey in a manner unlike that used by any other frog larvae: by shooting out a tubular mouth for superfast suction.