News in Brief
- Materials Science
Nanoglue attaches tissues to each other
Silica particles could repair and help engineer human organs.
By Beth Mole - Humans
Fossils reveal a strong-armed, dead-end hominid
Olduvai Gorge finds suggest extinct hominid both walked and hung out in trees.
By Bruce Bower - Planetary Science
Mars was habitable longer, more recently than thought
Warmer, wetter conditions lasted until 3.5 billion years ago on the Red Planet.
By Andrew Grant - Astronomy
Saturn’s six-sided cloud pattern gets a close look
New images show particles in the planet’s hexagonally shaped jet stream.
- Health & Medicine
Triplet births decline as IVF practice evolves
The number of U.S. pregnancies resulting in three or more babies has gone down since 1998.
By Nathan Seppa - Health & Medicine
Cell counts provide a read on ovarian cancer
New technology might discern which tumors are most dangerous and help guide treatment.
By Nathan Seppa - Animals
How the ghost shark lost its stomach
The lack of a digestive organ in fish and other animals is linked to genetics.
By Susan Milius - Earth
Earth’s plate boundaries may nurture diamond formation
An experiment mimicking conditions deep in the Earth suggests that some tectonic plate boundaries may make ideal diamond nurseries.
- Animals
How koalas sing low
Extra set of vocal cords lets males hit surprisingly low notes.
By Beth Mole - Neuroscience
Fear can be inherited
Parents’ and even grandparents’ experiences echo in offspring, a study of mice finds.
- Astronomy
ISON seems to have survived close call with sun
Comet ISON seems to have emerged from its brush with the sun diminished but intact, according to the latest reports.
- Astronomy
Comet ISON approaches sun for Thanksgiving flyby
On Thanksgiving, Comet ISON will pass near the sun and may disintegrate.