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- Animals
Climate change may be shrinking tropical birds
Scientists had previously found that migratory birds are getting smaller as temperatures rise. Dozens of tropical, nonmigratory species are too.
- Earth
A mineral found in a diamond’s flaws contains the source of some of Earth’s heat
A mineral theorized to exist in the mantle was found hiding in a diamond. Dubbed davemaoite, it could explain where some of Earth’s heat comes from.
- Health & Medicine
No, COVID-19 vaccines won’t make you infertile
Contrary to misinformation spread by Aaron Rodgers and Nicki Minaj, neither the Pfizer, Moderna nor J&J vaccines cause infertility, data show.
- Space
A stunning simulation re-creates how M87’s black hole launches plasma jets
Two jets, thousands of light-years long, are re-created in a computer simulation, which suggests that M87’s black hole must be spinning rapidly.
- Materials Science
Researchers have unlocked the secret to pearls’ incredible symmetry
Understanding the structural secrets of how mollusks form symmetrical pearls could inspire more optimal materials for solar panels and space travel.
- Anthropology
‘The Dawn of Everything’ rewrites 40,000 years of human history
A new book recasts human social evolution as multiple experiments with freedom and domination that started in the Stone Age.
- Life
Some songbirds now migrate east to west. Climate change may play a role
In recent decades, more Richard's pipits are wintering in Europe than before. It may signal the establishment of a totally new migration route.
- Paleontology
‘Penis worms’ may have been the original hermits
Soft-bodied critters called penis worms inhabited abandoned shells — a la modern-day hermit crabs — by about 500 million years ago, a study suggests.
- Health & Medicine
How to choose a COVID-19 vaccine booster shot
To help you choose between the Pfizer, Moderna and Johnson & Johnson COVID-19 boosters, one reporter looked to the evidence and consulted experts.
- Earth
Earth’s lower atmosphere is rising due to climate change
In the Northern Hemisphere, the upper boundary of the troposphere, the slice of sky closest to the ground, rose 50 to 60 meters a decade from 1980 to 2020.
- Neuroscience
50 years ago, scientists were on the trail of ‘memory molecules’
In the 1970s, scientists found the first “memory molecule.” Several other candidates have popped up in the decades since.
