Uncategorized
- Planetary Science
Mysterious circles appear, grow on comet
The Rosetta spacecraft caught five circular depressions quickly spreading across a region of comet 67P.
- Math
83-year-old math problem solved
An 83-year-old math problem concerning sequences of 1s and –1s has been solved.
- Anthropology
Ancient hominid ears were tuned to high frequencies
Two ancient hominid species may have heard high-frequency sounds especially well.
- Animals
Alpine bee tongues shorten as climate warms
Pollinators’ match with certain alpine flowers erodes as climate change pushes fast evolution.
- Chemistry
Elusive acid finally created
Cyanoform, a chemical sought for more than a century and written into textbooks, is one of the strongest organic acids.
- Astronomy
Black hole collisions evade detection
The environment in the centers of some galaxies might inhibit gravitational waves radiating from supermassive black holes, a new study suggests.
- Health & Medicine
What makes cells stop dividing and growing
Scientists have found that the protein GATA4 helps control cellular senescence, and may be a target for treating aging-related diseases.
- Paleontology
New dinosaur identified in Alaska
New species of duck-billed dinosaur discovered in the Alaskan permafrost.
- Life
For people, mealtime is all the time
People eat for most of their waking hours, which may affect sleep and weight.
- Neuroscience
Separate cell types encode memory’s time, place
Cells called ocean cells help store a memory’s “where,” while other cells called island cells help store a memory’s “when.”
- Health & Medicine
Having sex doesn’t trigger heart attacks, study suggests
Sex doesn’t trigger heart attacks, study of patients with cardiovascular disease suggests.
- Anthropology
More than 9,000-year-old decapitated head discovered in Brazil
Human decapitation goes back more than 9,000 years in the Americas.
