News
- 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.
- 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.”
- 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.
- Health & Medicine
Study finds benefits from lowering blood pressure, but questions remain
Preliminary results from NIH clinical trial suggest that lower blood pressure is better, but scientists have not yet published the data and open questions remain.
- Life
Old stem cell barriers fade away
Barrier that keeps aging factors out of stem cells breaks down with age.
- Science & Society
Rocky families, not same-sex parents, blamed for kids’ troubles in adulthood
Range of adult problems linked to childhood family changes, not gay parents.
- Planetary Science
Enceladus’ ocean goes global
A subsurface liquid water ocean envelops Saturn’s icy moon Enceladus.
- Planetary Science
Mars’ ionosphere mystery explained
A decades-old disagreement between the Viking landers and spacecraft buzzing around Mars might come down to what time of day each was investigating the Red Planet’s ionosphere.
