Light
What causes the strange triangle of light in late winter skies
How scientists are making the power of invisibility a reality
SAD-proof your home for the winter with these science-backed tips
Holiday lights are getting brighter—and messing with our sleep
Watch a black hole fall into a star and then blow it up
LED light treatments for skin are trendy—but do they actually work?
Why predicting the northern lights is harder than it looks
Fireflies are flourishing in places you wouldn't expect
Why do so many animals ‘glow’ in UV light?
These ants use moonlight to find their way home
How to photograph a total solar eclipse
There’s a better way to wake up. Here’s what experts advise.
See the world’s most enchanting sound and light shows
The science behind seasonal depression
What color are reindeer eyes? Depends on the season.
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