Uncategorized
-
HumansHigh costs of CT screening
Whole-body computed tomography scans for asymptomatic disease do not appear cost-effective at this time.
By Janet Raloff -
EarthSubway air does extra damage
Airborne particles in subterranean transit stations may be more damaging to human cells than are particles from street-level air.
By Ben Harder -
Planetary ScienceMeteorite on Mars
One of the twin rovers on Mars has discovered the first meteorite ever found on a planet other than Earth.
By Ron Cowen -
HumansLetters from the February 12, 2005, issue of Science News
Short end of the chromosome Since “women with chronically ill children generally reported more stress” and since “there was a very striking connection between stress and telomere length” (“Stressed to Death: Mental tension ages cells,” SN: 12/4/04, p.