Life
- Brain
Many U.S. football players had brain disease, data show
The brains of more than 200 former football players were donated to science upon their deaths. Signs of severe brain trauma showed up in the vast majority.
- Brain
Mild brain injury can cause bead-like swellings in brain cells
Mild head bumps cause temporary swellings — like beads in a necklace — within brain cells. If cells get enough time to heal, those “beads” will disappear.
- Animals
Giant Antarctic sea spiders breathe really strangely
Sea spiders have many bizarre body systems. Scientists have now discovered that they breathe and circulate oxygen in a way never seen before.
- Life
Scientists Say: Histology
When scientists study the parts of an animal or plant, they are studying anatomy. When they need a microscope to see the details of that anatomy, they are studying histology.
- Oceans
Cool Jobs: Science deep beneath the waves
These scientists probe the sea’s depths, its strange inhabitants, the movement of water and how life evolves in extremes.
- Animals
This tiny animal is apocalypse-proof
Microscopic animals called water bears can survive nearly any kind of apocalypse, from asteroids and nuclear war to exploding stars.
- Animals
Humpbacks flap their flippers like underwater birds
Surprising new video shows humpback whales flapping their front flippers to move their massive bodies toward their prey.
- Animals
Could a dragonfly’s wings be alive — and breathing?
Highly magnified image showing what looks like breathing tubes suggests the morpho dragonfly’s wings may be unexpectedly alive.
- Genetics
Scientists hide a real movie within a germ’s DNA
A gene-editing technology called CRISPR helped scientists encode a short movie in the DNA of E. coli bacteria.
- Genetics
Explainer: How CRISPR works
Scientists are using a tool called CRISPR to edit DNA in all types of cells.
- Environment
Night lights have a dark side
Artificial light at night not only affects our view of the night sky, but also has the ability to impair animal behaviors — and probably our health.
- Health & Medicine
Analyze This! Mosquito repellents that work
Spray-on repellents are generally the best at keeping those blood suckers from making you their next meal, new data show.
