All Stories
- Health & Medicine
Active teens build strong bones for life
Adult bones develop much of their strength during adolescence. That’s why teens should stay active with running, jumping and other weight-bearing exercises, a new study finds.
- Brain
Scientists Say: Hippocampus
The hippocampus is an area of the brain that is essential for forming new memories.
- Archaeology
Stone Age dentists treated cavities with tar
Is Italy the home of dentistry? That’s where treated tooth decay has been found, dating back 14 millennia. Cavities appear picked clean with sharp tools. Ouch!
- Chemistry
Steady heartbeats may depend on white blood cells
Biologists have just found a new role for germ-fighting white blood cells. In the heart they appear to serve as pacemakers so that the heart beats regularly.
- Climate
Cool Jobs: Head in the clouds
What do a microbiologist, an atmospheric scientist and a materials engineer have in common? They’ve all got their heads in the clouds.
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Confidence in math predicts girls’ participation in STEM
Even with similar grades, high school girls rank themselves less able to handle tough math material. That may steer them away from math and science careers.
- Health & Medicine
Analyze This: Real data on lead levels in school drinking water
The metallic element lead can be toxic if ingested. To keep students safe, many schools now test their water. Some have found dangerously high levels.
- Health & Medicine
Searching for better, cooler friends might backfire
When people try to find the best possible people to hang out with, they become less happy in life, a new study finds.
- Health & Medicine
Star Trek gets closer to becoming home tech
Inspired by Star Trek, inventors have created handheld devices to diagnose common medical ailments.
- Chemistry
Beyond diamonds: Search is on for rare carbon crystals
A search for previously undiscovered carbon minerals was announced in December 2015. Researchers have begun finding a handful and are actively scouting for dozens more.
- Animals
Scientists are rethinking the dinosaur family tree
The dinosaur family tree consists of three main branches. Or maybe not. A new study suggests a rewrite is due.
- Chemistry
Scientists Say: Isotope
An isotope is a variety of an element that has the same number of protons but a different number of neutrons — or neutrally charged particles.
