Uncategorized
- 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.
- Animals
A fish’s fins may be as sensitive to touch as fingertips
Newfound parallels between fins and fingers suggest that touch-sensing limbs evolved early, setting the stage for a shared way to sense surroundings.
- Animals
‘Phallacy’ deflates myths about the penises of the animal kingdom
By touring nature’s many penises, Phallacy author Emily Willingham puts the human organ in its place.
- Health & Medicine
COVID-19’s death rate in the U.S. could spike as new cases soar
Effective treatments are one possible reason the mortality rate from COVID-19 fell over the summer. Rising cases could reverse the trend.
- Health & Medicine
How COVID-19 may trigger dangerous blood clots
Clots may stem from net-casting immune cells that, instead of fighting a coronavirus infection, capture red blood cells and platelets.
- Space
Jupiter may host atmospheric ‘sprites’ or ‘elves’ never seen beyond Earth
For the first time, NASA’s Juno spacecraft may have spied the bright, superfast light show on another world.
- Psychology
‘Deaths of despair’ are rising. It’s time to define despair
A sense of defeat, not mental ailments, may be derailing the lives of less-educated people in the United States.
- Animals
How frigid lizards falling from trees revealed the reptiles’ growing cold tolerance
Some Florida lizards’ ability to handle temperatures down to 5.5° C may provide clues to how they might deal with the extremes of climate change.
- Health & Medicine
How two immune system chemicals may trigger COVID-19’s deadly cytokine storms
A study in mice hints at drugs that could be helpful in treating severe coronavirus infections.
