News
- Life
Diving spiders make their own gills
Eurasian diving bell spiders, the only truly aquatic arachnids, survive underwater with the help of “physical gills,” scientists say.
- Chemistry
Water-air interface barely there
The transition between gas and liquid is an extremely insubstantial affair.
- Life
Heart has cellular regeneration ability
In mice, injecting a protein spurs the organ’s own stem cells to regrow small amounts of tissue after damage.
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- Space
Superdupernovas
A new class of stellar explosion is very bright — and somewhat hard to explain.
By Ron Cowen - Life
Genetics offers more hints about autism
Three studies illustrate why a single cause for autism spectrum disorders has been so difficult to pin down.
- Life
Weeds increasingly immune to herbicides
Agricultural scientists warn that crop yields could drop as a result of emerging resistance.
By Janet Raloff - Life
Marine microbes fritter away jelly bonus
Bacterial feasts during jellyfish blooms drain valuable carbon out of the food web.
By Susan Milius -
- Health & Medicine
Drug prevents some breast cancers
A hormone-blocking compound can waylay some malignancies in healthy women who are deemed at risk.
By Nathan Seppa - Humans
Site hints at Asian roots for human genus
An early Homo species inhabited the Caucasus region 1.85 million years ago, casting doubt on its proposed African origin.
By Bruce Bower - Space
Black hole jets in HD
Images of unprecedented resolution offer insight into how black holes swallow up matter.
By Ron Cowen