News
- Chemistry
A new portable device can reveal a chili pepper’s heat
The “Chilica-pod” measures levels of the fiery capsaicin compound in peppers.
- Health & Medicine
Pfizer’s COVID-19 vaccine is 90% effective, preliminary trial data show
An analysis of 94 COVID-19 cases shows that the mRNA-based vaccine can protect people from getting sick, though the trial is ongoing.
- Space
Jupiter’s icy moon Europa may glow in the dark
Europa’s potential “ice glow” could help scientists map the chemical composition of its surface — and the ocean underneath.
- Genetics
Penicillin allergies may be linked to one immune system gene
Researchers have located a shared hot spot — on the HLA-B gene — in the immune system in people who say they have penicillin allergies.
- Neuroscience
FDA advisory panel declines to support a controversial Alzheimer’s treatment
The fate of an Alzheimer’s drug, developed by pharmaceutical company Biogen, remains up in the air.
- Tech
A smartwatch app alerts users with hearing loss to nearby sounds
With a new smartwatch app, users who are deaf or hard of hearing can get alerts that an alarm is going off or someone is knocking at the door.
- Animals
A blue-green glow adds to platypuses’ long list of bizarre features
The discovery of platypuses’ fluorescent fur has researchers wondering if the trait is more widespread among mammals than anyone has realized.
- Life
An ancient amphibian is the oldest known animal with a slingshot tongue
A tiny amphibian that lived 99 million years ago waited for invertebrate prey before snatching them with a swift, shooting tongue.
- Space
The Milky Way makes little galaxies bloom, then snuffs them out
When dwarf galaxies cross the Milky Way’s frontier, our galaxy compresses their gas, sparking star birth, but then robs them of their star-making gas.
- Anthropology
Female big-game hunters may have been surprisingly common in the ancient Americas
A Peruvian burial that indicates that women speared large prey as early as 9,000 years ago sheds new light on gender roles of ancient hunter-gatherers.
- Paleontology
Why South America’s ancient mammals may have lost out to northern counterparts
When North and South America joined millions of years ago, mammals from the north fared better in the meetup. Extinctions in the south may be why.
- Animals
A surprisingly tiny ancient sea monster lurked in shallow waters
Scientists have found a new species of marine reptiles called nothosaurs from around 240 million years ago.
