News
- Health & Medicine
Saving monkey testicle tissue before puberty hints at a new way to preserve fertility
Frozen testicle tissue samples from prepubescent monkeys transplanted back onto those monkeys once they matured produced sperm.
- Health & Medicine
A new ketamine-based antidepressant raises hope — and questions
Little is known about the long-term effects on people of a newly approved antidepressant based on the anesthetic ketamine.
- Astronomy
X-ray ‘chimneys’ connect the Milky Way to mysterious gamma-ray bubbles
Two columns of X-rays that are hundreds of light-years long could explain the existence of giant bubbles of energetic light that sandwich the galaxy.
- Planetary Science
Surprising astronomers, Bennu spits plumes of dust into space
Bennu spews dust from its rocky surface, which may be a new kind of asteroid activity.
- Science & Society
The learning gap between rich and poor students hasn’t changed in decades
The educational achievement gap between the poorest and richest U.S. students remains as wide as it was almost 50 years ago.
- Planetary Science
Ultima Thule may be a frankenworld
The first geologic map of Ultima Thule shows it might be made of many smaller rocks that clumped together under the force of their own gravity.
- Neuroscience
People can sense Earth’s magnetic field, brain waves suggest
An analysis of brain waves offers new evidence that people subconsciously process information about the planet’s magnetism.
- Genetics
Resurrecting woolly mammoth cells is hard to do
Japanese scientists say some proteins in frozen mammoth cells may still work after 28,000 years. But that activity may be more mouse than mammoth.
- Humans
The rise of farming altered our bite and changed how people talk
Eating soft, processed foods refashioned adults' jaws, which added “f” and “v” sounds to speech and changed languages worldwide, a study finds.
- Health & Medicine
Flickers and buzzes sweep mouse brains of Alzheimer’s plaques
Precisely timed clicking noises can counter signs of Alzheimer’s in the brains of mice and improve memory.
- Climate
Students worldwide are striking to demand action on climate change
On March 15, students are set to attend more than 1,000 events to demand that governments do more to rein in greenhouse gas emissions.
- Genetics
Geneticists push for a 5-year global ban on gene-edited babies
Prominent scientists are using the word “moratorium” to make it clear that experiments to create babies with altered genes are wrong, for now.
