All Stories
- Space
Pollution may give ‘first’ stars a youthful look
The oldest stars should be made of only light elements. But these suns may have sucked up heavier elements, giving them a more youthful appearance, a new study finds.
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Cookie Science: A bit about butter
I teamed up with the ACS Reactions team to make a video about cookie science. Here are the details of our experiment.
- Animals
Humans are ‘superpredators’
A new study compares the hunting habits of wild animals and humans. People, it turns out, are unlike any other predator on Earth.
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Hitting headgear hard to head off concussions
When one soccer player saw her friends getting head injuries, she decided to do something about it. She used her science fair project to test protective headgear.
- Brain
Study challenges safety for teens of two depression drugs
Scientists reanalyze data on the safety of common drugs to treat depression and find that they don’t seem to help teens. Worse, the drugs may harm them.
- Animals
Wolves beat dogs at problem-solving test
When treats are at stake, wolves outperformed dogs at opening a closed container. The dog’s relationship with humans may explain why.
- Plants
Scientists Say: Xylem
How do trees ferry water from the soil to branches hundreds of feet in the air? This week’s word is the answer.
- Health & Medicine
News Brief: People shed clouds of tell-tale germs
Even after someone has left a room, a cloud of his or her germs laces the air, new data show. Watch out: That mix can be very individual — and even ID you!
- Animals
Cool Jobs: Finding new uses for nature’s poisons
Scientists study toxins and other natural compounds in search of alternatives to ineffective antibiotics and dangerous pesticides.
- Chemistry
Trio gets chemistry Nobel for figuring out DNA repair
Three researchers have won the 2015 Nobel Prize in chemistry for working out how cells fix damaged genetic material.
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Teen invents a better tent to beat fire’s heat
Firefighters can die fighting wildfires. A teen decided to make a better shelter to keep those heroes safe from approaching flames.
- Health & Medicine
Store-receipt chemicals taint blood and urine
Cashiers who handle receipts absorb potentially risky levels of chemicals that coat the receipts, a new study shows.
