Vol. 183 No. #7 Archives

More Stories from the April 6, 2013 issue

  1. Health & Medicine

    Surgery shows promise in treating persistent heartburn

    Ring-shaped device around esophagus prevents acid reflux so that patients can stop taking drugs.

    By
  2. Space

    New home for runaway black hole

    Galactic merger and ejection may have sent a cosmic wanderer through deep space.

    By
  3. Earth

    Moderate climate warming could melt permafrost

    Ancient cave formations in Siberia reveal effects of warmer past on frozen ground.

    By
  4. Earth

    Nutrients matter in tropical forests

    Soil nutrients and rainfall predict tree species range in Panama’s tropical forests.

    By
  5. Health & Medicine

    Mouse brain cells live long and prosper

    Mouse neurons live twice as long as usual when transplanted into rat brain, suggesting that brain deterioration may not necessarily accompany long life.

    By
  6. Life

    Impact craters may have been a toasty home for early life

    The heat generated during a cosmic crash could have nurtured ancient organisms.

    By
  7. Space

    Radiation ring around Earth mysteriously appears, then dissipates

    Space probes detect temporary transition from two radiation belts to three, possibly in response to solar activity.

    By
  8. Life

    Sperm swim against the current

    Human and mouse sperm both follow upstream currents to the egg.

    By
  9. Health & Medicine

    Baby may be cured of HIV

    Only viral traces remain after prompt treatment of newborn, suggesting no working virus is left in the girl’s body.

    By
  10. Life

    Camel ancestors lived in the Arctic

    Fossils on Ellesmere Island suggest famous desert dweller got its start in cold regions.

    By
  11. Physics

    Vortex gets tied in knots

    Physicists use 3-D printing and tiny bubbles to capture twisted-up water.

    By
  12. Space

    No vacancy around stars

    The Milky Way’s planets pack tightly around their stars, according to simulations using data from the Kepler space telescope.

    By
  13. Life

    Mice get brain boost from transplanted human tissue

    An experimental transplant of what have long been considered just support cells shows they may play a role in memory and learning.

    By
  14. Life

    Alga borrows genes to beat the heat, acid and toxic metals

    Such genetic theft from bacteria and archaea is unusual among eukaryotes.

    By
  15. Planetary Science

    Distant planets’ atmospheres revealed

    Telescopes get first direct glimpse of gases on exoplanets.

    By
  16. A genetic exhibitionist

    By
  17. Upcoming events

    By
  18. SN Online

    By
  19. Humans

    Students honored for research

    The 40 finalists in this year’s Intel Science Talent Search received a total of $630,000 in awards for their research. The top 10 received $20,000 or more.

    By
  20. Antarctica: An Intimate Portrait of a Mysterious Continent by Gabrielle Walker

    By
  21. Friendfluence: The Surprising Ways Friends Make Us Who We Are by Carlin Flora

    By
  22. Radiation: What It Is, What You Need to Know by Robert Peter Gale and Eric Lax

    By
  23. Alien Life Imagined: Communicating the Science and Culture of Astrobiology by Mark Brake

    By
  24. BOOK REVIEW: Louis Agassiz: Creator of American Science by Christoph Irmscher

    By
  25. BOOK REVIEW: The Kingdom of Rarities by Eric Dinerstein

    By
  26. Genetics

    From Great Grandma to You

    Epigenetic changes reach down through the generations.

    By
  27. Physics

    As Erebus Lives and Breathes

    The Antarctica volcano’s long-lived lava lake coughs up clues to the physiology of volcanoes .

    By
  28. Letters to the editor

    By
  29. Patents of the week

    By
  30. The Enlightenment Vision: Science, Reason, and the Promise of a Better Future by Stuart Jordan

    By