News
- Genetics
Freeze-drying turned a woolly mammoth’s DNA into 3-D ‘chromoglass’
A new technique for probing the 3-D structure of ancient DNA may help scientists learn how extinct animals functioned, not just what they looked like.
- Environment
Landfills belch toxic ‘forever chemicals’ into the air
An analysis of samples from three Florida landfills shows that landfill gas can carry more PFAS than the liquid that leaches from the waste.
- Health & Medicine
Breastfeeding should take a toll on bones. A brain hormone may protect them
The hormone CCN3 improves bone strength even as breastfeeding saps bones of calcium, a study in mice shows.
- Astronomy
A middleweight black hole has been spotted for the first time in our galaxy
The rare find, discovered in the star cluster Omega Centauri, could offer clues to how black holes and galaxies evolve.
- Animals
Tiny saunas help frogs fight off chytrid fungus
Balmy shelters could bolster resistance to the deadly fungus in amphibian populations, but experts caution they won’t work for all susceptible species.
- Health & Medicine
How doctors can help demystify birth control amid online confusion
There’s a larger takeaway from some social media content about hormonal birth control side effects: People aren’t getting the information they need.
- Health & Medicine
Bird flu viruses may infect mammary glands more commonly than thought
H5N1 turning up in cow milk was a big hint. The virus circulating in U.S. cows can infect the mammary glands of mice and ferrets, too.
- Environment
Federally unprotected streams contribute most of the water to U.S. rivers
A 2023 U.S. Supreme Court ruling that ephemeral streams aren’t protected by the Clean Water Act could have sizable ripple effects, a study suggests.
- Cosmology
Strange observations of galaxies challenge ideas about dark matter
A new look at how light bends as it travels through the universe could point to an alternative theory of gravity.
- Health & Medicine
Some people have never gotten COVID-19. An obscure gene may be why
A trial that purposely exposed volunteers to COVID-19 revealed key immunological differences that may explain why some people can dodge SARS-CoV-2.
- Physics
Advanced nuclear reactors need a different type of uranium. Here’s 4 things to know
The nuclear fuel of the future may be HALEU, high-assay low-enriched uranium. But questions about the material remain.
- Climate
Why this year’s climate conditions helped Hurricane Beryl smash records
Scientists predicted an active hurricane season, but a July Category 5 storm is still stunning.
