All Stories by Science News Staff
- Environment
Handling receipts increases exposure to BPA
People who handle cash register receipts printed on thermal paper show notable exposure to bisphenol A.
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Feedback
Readers respond to disco clams, flying ibises and the changes pot makes on the brain.
- Planetary Science
Lunar asteroid impact caught on video
On September 11, a dishwasher-sized meteoroid slammed into the nearside of the moon, exploding with the equivalent of 16 tons of TNT — and a lucky team of Spanish astronomers caught it on video.
- Neuroscience
Brain’s fact-checker located
A bit of brain tissue near the top of the head may be the body’s fact-checker. Called the supplementary motor cortex, this brain region monitors the body’s action and sends an alert when a mistake is made.
- Psychology
Beatles reaction puzzles even psychologists
From the February 29, 1964, issue: Psychologists are as puzzled as parents over the explosive effect the Beatles are having on American teen-agers.
- Earth
Age of Earth’s crust confirmed
Decaying atoms traced in zircon uphold dating of Earth's crust at about 4.374 billion years old.
- Physics
Graphene film blocks wireless signals
A transparent film made of graphene layered with quartz absorbed 90 percent of radio waves.
- Particle Physics
More precision added to mass estimate of electron
The electron has been weighed with unprecedented precision. Its new and improved mass is 17 times as precise as the previous best estimate.
- Life
Fins and wings alike share design features
Animals have adapted a number of different ways to swim and fly. But new research suggests that wings, fins and flukes share a couple of basic design parameters.
- Life
Questions raised about new method for making stem cells
A January study showing that stem cells can be produced by dipping adult cells in a simple acid bath is now under investigation.
- Animals
Elephants offer a reassuring touch in stressful times
Elephants seem to comfort their comrades in times of need, hinting that the animals may have the capacity for complicated mental feats such as empathy.
- Life
Happy birthday, Mr. Darwin
A male rove beetle that Charles Darwin collected in Argentina in 1832 has finally turned up and been named in his honor.
