The Space Station Has 15 Sunsets A Day, And All Are Beautiful

The International Space Station goes through a full day in 92 minutes, each with its own sunrise and sunset. The Earth's atmosphere acts as a prism, bending rays of sunlight to paint the station in a quick succession of rich colours. Astronaut Butch Wilmore photographed how the light changes on a solar array. » 11/18/14 4:23pm 11/18/14 4:23pm

In This Image, Two Photons Interact. Here's Why It's Groundbreaking.

Normally, photons want nothing to do with one another. Light waves just pass through each other like ghosts. But now, for the first time ever, scientists at the University of Vienna have coaxed a strong interaction between two single photons. It's an achievement that opens up radical new possibilities for a number of… » 11/04/14 12:30pm 11/04/14 12:30pm

You Can See Your Own White Blood Cells Flowing Through Your Eye!

If you look up into the blue sky long enough, and with enough attention, you should be able to see tiny blue-white dots flashing around the sky.The phenomenon was so well-known that it acquired the nickname "blue-sky sprites," but they're actually white blood cells moving through your eye. » 10/29/14 8:40am 10/29/14 8:40am

Fata Morganas Make Fantastic Castles Appear Over the Ocean

In past centuries, sailors were sometimes surprised to see upside-down ships sailing in the sky, or elaborate castles built on the ocean. When they turned towards them, these apparitions vanished. The illusions, called The Fata Morgana, can still be seen today if the witches are in a mood the weather's right. » 8/05/14 10:28am 8/05/14 10:28am