News
- Planetary Science
67P reveals recipe for a comet
Rosetta’s comet 67P probably started out as two smaller comets.
- Math
83-year-old math problem solved
An 83-year-old math problem concerning sequences of 1s and –1s has been solved.
- 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.
- 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.”
- Life
For people, mealtime is all the time
People eat for most of their waking hours, which may affect sleep and weight.
- Quantum Physics
Quantum choice can be counterproductive
In a puzzling paradox, delivering quantum messages becomes more difficult if the intended recipient offers the sender multiple options for the time and place of delivery.
- Anthropology
Handed-down tales tell of ancient sea level rise
Australian Aborigines tell tales of actual, ancient sea-level rises, a contested study finds.
- Earth
Shortcut math predicts tsunami height quickly
The September 16 earthquake that rattled Chile proved an unexpected test for new numerical calculations that could provide quicker forecasts of incoming tsunamis.
- Physics
Raw chicken, ingenuity make a time-reversal mirror
A new phase-conjugation mirror sends light waves back where they came from, allowing physicists to reconstruct images even if the original light was severely scrambled.
