News
-
AstronomyFirst Supper: X rays may mark eating habits of baby black holes
Astronomers have evidence that just minutes after their tumultuous birth, baby black holes emit powerful burps of X rays that may be fueled by material left over from their first meal.
By Ron Cowen -
PhysicsWarm Ice: Frozen water forms at room temperature
Ultrathin films of ice observed at room temperature and ordinary atmospheric pressure should be more widespread than previously thought, according to new experiments indicating that weaker-than-expected electric fields induce such freezing.
By Peter Weiss -
Turning Back Time: Embryonic stem cell rejuvenates skin cell
By fusing an embryonic stem cell with an adult skin cell, researchers have created cells that retain valuable embryonic characteristics but carry the adult cell's genes.