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Martha Morales
Full moon photo via Lee Capps.

What is the moon illusion?

Why does the moon look so big on the horizon? It’s called the “moon illusion” and it’s a trick your brain is playing.

Hayfield in infrared via Andrew Shurtleff

Video: Seeing (infra)red

Andrew Shurtleff’s stunning time-lapse video shows the world as viewed in near-infrared – like a planet painted in pure ice.


Video: Magnetic putty

Joey Shanks (ShanksFX from PBS Digital Studios) created this video powered by awesome power of magnetic putty.

Honey Bee

Video: Honeybee in ultra slow motion

Watch a honeybee as it starts its flight, filmed with a high speed camera at 3000 frames per second.

CSA Astronaut Chris Hadfield

Video: Wringing out a washcloth on the ISS

Here’s another way cool video of astronaut Chris Hadfield doing an everyday thing in zero gravity aboard the ISS. This time he’s wringing out a wet washcloth.


The history of humans on Earth, in two minutes

If you’ve got two minutes (OK, two and a half minutes) you can watch this cool video of the history of humans on Earth.

Dive hole into Antarctica's Lake Untersee via NY Times

Watch this video of a plunge into an Antarctic lake

An intrepid diver shot the video from the bottom of icy lake, at the bottom of the world.

Differences in density between ink and water

Ink into water in super high-resolution slow-mo

This super high resolution video features slow motion diffusion of ink drops in water. What does it suggest to you … people dancing … flowers blooming…?

Is Pluto a planet?

Video: Why isn’t Pluto a planet anymore?

Video by C.G.P. Grey does a good job explaining why, in 2006, the International Astronomical Union demoted Pluto to dwarf planet status.

Credit: Shutterstock

Video: How human numbers stack up against everything from bugs to bacteria

Humans on Earth now number 7,063,264,715 … 7,063,264,716 … 7,063,264,717 … Ever wonder how human population numbers stack up against other species?