News
-
AstronomyX-Ray Chaos: Violence shows itself in a nearby galaxy
New X-ray observations provide additional evidence that Centaurus A, the nearest radio-wave-emitting galaxy to Earth that has a supermassive black hole, is a maelstrom of violence.
By Ron Cowen -
EarthKiller Cocktails: Drug mixes threaten aquatic ecosystems
Trace amounts of pharmaceutical drugs in waterways may work together to deform and kill native microscopic organisms.
-
Not a Turn-On: Alleged X chromosome activator may be a dud
A gene that helps regulate X chromosome activity in mice doesn't work in people.
By Kristin Cobb -
Materials ScienceSpinning Fine Threads: Silkworms coerced to make better silk
The caterpillars that spin commercial silk can make tougher or more elastic threads, depending on how fast they're forced to spin.