Asteroid tracked from space to Earth

The News:

Asteroid tracked from space to Earth

Combination of telescope data and collected debris could provide new insights
By Solmaz Barazesh
Science News Web edition : Wednesday, March 25th, 2009
They saw it coming, and they got what was coming to them. For the first time, researchers not only detected an asteroid in space, but also tracked its progress and then collected its debris after it crashed to Earth.
The car-sized asteroid, dubbed 2008 TC3, landed in northern Sudan on October 7, 2008, scientists report in the March 25 Nature. The study combines for one asteroid data that are usually separate: Comparing data from observations of the asteroid in while it was space with analysis of its meteorite fragments on Earth will yield new insights into asteroids, the scientists say.

The Research:
Read the research behind this story in Nature.

Research News: Study Links Anesthesia To Learning Disabilities

The News:

Study Links Anesthesia To Learning Disabilities
by Joseph Shapiro
Morning Edition, March 25, 2009 · Children who have had multiple surgeries under general anesthesia by the age of 4 may be at a higher risk of developing learning disabilities, according to a new study by scientists at the Mayo Clinic in Rochester, Minn.
Dr. Robert Wilder, a Mayo Clinic anesthesiologist, says his study was motivated by recent research on baby rats and other young animals. Those studies, conducted in the last several years, show that exposure to anesthesia at a very young age can kill off brain cells. But results in rodents don't necessarily translate to humans.

The Research:
Read the research behind this story in Anesthesiology.