Notebook

  1. Planetary Science

    Shergottite SHER-goh-tite n.

    Shergottite is the most common kind of Martian meteorite.

    By Sarah Zielinski
  2. Humans

    Not really nine months

    Gestation length varies greatly.

    By Science News
  3. Plants

    Dastardly daisies

    This flower isn’t just any old sex cheat. It can be sexually deceptive three ways and in 3-D.

    By Susan Milius
  4. Physics

    Key to Other Worlds

    Excerpt from the August 17, 1963, issue of Science News Letter.

    By Science News
  5. Computing

    Forecasting by computer

    Excerpt from the August 10, 1963, issue of Science News Letter.

    By Science News
  6. Genetics

    Chromosome Variations

    Excerpt from the July 27, 1963, issue of Science News Letter

    By Science News
  7. Quantum Physics

    Most precise clock

    It would take more than 50 billion years for a new atomic clock to gain or lose a second.

    By Andrew Grant
  8. Genetics

    Chromothripsis

    Chromothripsis is the catastrophic shattering of a chromosome.

    By Tina Hesman Saey
  9. Health & Medicine

    Nobelist’s Cancer Theory

    Excerpt from the July 13, 1963, issue of Science News Letter

    By Science News
  10. Health & Medicine

    Balloon Clears Arteries

    Excerpt from the June 29, 1963, issue of Science News Letter.

    By Science News
  11. Planetary Science

    Thirty years to Mars

    Excerpt from the June 15, 1963, issue of Science News Letter.

    By Nathan Seppa

  12. Upcoming events

    Science Future for June 1, 2013.

    By Science News