Latest about light
So Much of the Arctic Is on Fire, You Can See It From Space
Wildfires burning large swaths of Russia are generating so much smoke, they're visible from space, new images from NASA's Earth Observatory reveal.
What Is Relativity?
Albert Einstein was famous for many things, but his greatest brainchild is the theory of relativity. It forever changed our understanding of space and time.
Lightning Strikes and Kills Motorcyclist. Why Rubber Tires Didn't Protect Him.
Here's why a motorcycle's rubber tires didn't protect the rider when lightning struck.
Keeping Your TV on at Night May Lead to Weight Gain
Exposure to light at night — from the glare of a bedroom TV or a street light through a window — may increase the risk of weight gain and obesity in women.
Exploding Stars May Have Put Humanity on Two Feet
Is there a cosmic origin for human bipedalism?
There's a Brand-New Kilogram, And It's Based on Quantum Physics
The kilogram isn't a thing anymore. Instead, it's an abstract idea about light and energy and fundamental universal constants.
Here's What the Speed of Light Looks Like in Slow Motion
What does the speed of light look like? CalTech researchers built the world's fastest camera to find out.
A Single Thundercloud Carries 1 Billion Volts of Electricity
A single thundercloud is more powerful than even the most potent nuclear plants on Earth. Scientists used cosmic rays to prove it.
