Uncategorized
- Anthropology
2021 research reinforced that mating across groups drove human evolution
Fossils and DNA point to mixing and mingling among Homo groups across vast areas.
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The triumph and fallibility of science in a historic year
Editor in chief Nancy Shute discusses the last year in science, including lessons we've learned about COVID-19, human evolution and amazing animal feats.
- Planetary Science
Ingenuity is still flying on Mars. Here’s what the helicopter is up to
NASA’s Ingenuity craft was originally planned to operate only 30 Martian days.
- Health & Medicine
For 50 years, CT scans have saved lives, revealed beauty and more
In 1971, the first CT scan of a patient laid bare the human brain. That was just the beginning of a whole new way to view human anatomy.
- Life
Cleared tropical forests can regain ground surprisingly fast
Tropical forests can re-establish themselves on abandoned agricultural lands faster than expected, scientists say.
- Climate
Wildfire smoke may ramp up toxic ozone production in cities
A new study reveals how wildfire smoke produces toxic ozone and how urban air pollution could exacerbate the problem.
- Science & Society
These are Science News’ favorite books of 2021
Our favorite books covered the Big Bang theory, human evolution, gene editing, how to define life, pseudoscience and more.
- Animals
Gut bacteria let vulture bees eat rotting flesh without getting sick
Acid-producing bacteria in the gut of vulture bees let these “weirdos of the bee world” safely snack on animal carcasses.
- Quantum Physics
Physicists have coaxed ultracold atoms into an elusive form of quantum matter
Quantum spin liquids could be used to help protect fragile information in quantum computers.
- Health & Medicine
A massive 8-year effort finds that much cancer research can’t be replicated
A project aiming to reproduce nearly 200 top cancer experiments found only a quarter could be replicated.
- Life
Light-colored feathers may help migrating birds stay cool on long flights
Analysis of over 20,000 illustrations of birds reveals that migrating birds generally tend to have lighter-colored feathers than birds that stay put.
- Plants
Invasive grasses are taking over the American West’s sea of sagebrush
Cheatgrass and other invasive plants are expanding rapidly in the western United States, putting more places at risk for wildfires.
