Health
Grace Holloway6 min read
What Your Brain Does While You Sleep
Sleep is when memories get filed — and the brain takes out the trash.
Grace Holloway6 min read
ScienceGrace Holloway6 min read
Why Is Mars Red? The Answer Is Rust
Iron, oxygen and billions of years of dust storms.
Grace Holloway6 min read
HealthGrace Holloway6 min read
Your Gut Is Home to Trillions of Microbes
The microbiome, explained — and what we still don’t know.
Grace Holloway6 min read
ScienceGrace Holloway6 min read
The Northern Lights Are Showing Up Farther South. Here’s Why.
The Sun’s busy cycle brought auroras to places that rarely see them.
Grace Holloway6 min read
HealthGrace Holloway6 min read
The Man Who First Saw Bacteria
In the 1670s, a Dutch cloth merchant built microscopes no one could match.
Grace Holloway6 min read
ScienceGrace Holloway6 min read
Honeybees Dance to Give Directions
The waggle dance tells sisters where the flowers are — and how far.
Grace Holloway6 min read
HealthGrace Holloway7 min read
How Vaccines Teach Your Immune System
A practice run, so the real thing doesn’t catch you off guard.
Grace Holloway7 min read
ScienceGrace Holloway6 min read
Birds Are Dinosaurs. Really.
Feathers, wishbones and a 150-million-year family tree.
Grace Holloway6 min read
ScienceGrace Holloway6 min read
The Toughest Animal on Earth Is Smaller Than a Grain of Sand
Tardigrades can survive freezing, boiling and even space.
Grace Holloway6 min read