News
- Archaeology
The oldest known tattoo tools were found at an ancient Tennessee site
Sharpened turkey leg bones may have served as tattoo needles between 5,520 and 3,620 years ago, at least a millennium earlier than previously thought.
- Animals
Gray wolves scare deer from roads, reducing dangerous collisions
The predators use roads as travel corridors, creating “a landscape of fear” that keeps deer away and saves millions of dollars a year, a study finds.
- Genetics
A gene-based therapy partially restored a blind man’s vision
Light-activated proteins inserted in eye nerve cells and special goggles help the man, who lost his sight due to retinitis pigmentosa, see objects.
- Health & Medicine
The CDC’s changes to mask guidelines raised questions. Here are 6 answers
Experts weigh in on the U.S. CDC’s recommendation fully vaccinated individuals removing masks indoors and what it means for the pandemic’s future.
- Animals
Urchin mobs team up to butcher sea stars that prey on them
Urchins are important herbivores in nearshore ecosystems, but are not strict vegetarians, with hunger that extends even to munching predatory nemeses.
- Astronomy
Record-breaking light has more than a quadrillion electron volts of energy
Hundreds of newly detected gamma rays hint at cosmic environments that accelerate particles to extremes.
- Earth
2021 will be another busy year for the Atlantic hurricane season
The average season is busier than it used to be, as NOAA predicts 13 to 20 named Atlantic storms between June 1 and November 30.
- Astronomy
Watch this beautiful, high-resolution simulation of how stars are born
The STARFORGE simulation follows a giant gas cloud as it collapses into new stars, accounting for all the phenomena thought to influence the outcome.
- Climate
‘Tree farts’ contribute about a fifth of greenhouse gases from ghost forests
Greenhouse gases from dead trees play an important role in the overall environmental impact of ghost forests, a new study suggests.
- Space
China’s first Mars rover has landed and is sending its first pictures
The country just became the second nation, after the United States, to successfully land a rover on Mars. Its rover will search for subsurface ice.
- Animals
Mammal brains may use the same circuits to control tongues and limbs
When mice drink water, they make corrective motions with their tongues that resemble similar adjustments made by primates when they grab for objects.
- Climate
‘Zombie’ forest fires may become more common with climate change
Wildfires that survive winter underground can flare up after warm summers and account for more than one-third of the scorched ground in some regions.
