News
- Earth
Ancient air bubbles could revise history of Earth’s oxygen
Pockets of ancient air trapped in rock salt for around 815 million years suggest that oxygen was abundant well before the first animals appear in the fossil record.
- Cosmology
Debate accelerates on universe’s expansion speed
A puzzling mismatch is plaguing two methods for measuring how fast the universe is expanding.
- Earth
How dinosaurs hopped across an ocean
Land bridges may have once allowed dinosaurs and other animals to travel between North America and Europe around 150 million years ago, a researcher proposes.
- Life
Yeasts hide in many lichen partnerships
Yeasts newly discovered in common lichens challenge more than a century of thinking about what defines the lichen symbiosis.
- Anthropology
Humans, birds communicate to collaborate
Bird species takes hunter-gatherers to honeybees’ nests when called on.
- Genetics
Evolution of gut bacteria tracks splits in primate species
Primates and microbes have been splitting in sync for at least 10 million years.
- Neuroscience
Antibiotics might fight Alzheimer’s plaques
A new study found that antibiotics hit Alzheimer’s plaques in the brains of mice.
- Animals
To douse hot hives, honeybee colonies launch water squadrons
The whole superorganism of a honeybee colony has sophisticated ways of cooling down.
- Physics
Electrons have potential for mutual attraction
Electrons usually repel each other, but new research shows pairs of electrons can be attracted due to their repulsion from other electrons.
- Health & Medicine
Anesthesia steals consciousness in stages
Brains regions that are synchronized when awake stop communicating as monkeys drift off.
- Physics
Scientists throw a curve at knuckleball explanation
Wildly swerving pitches may be the result of a phenomenon known as a “drag crisis”
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