When Everything On Earth Died

Based on fossil records, around 252 million years ago over 90% of all species on Earth died out, effectively resetting evolution.

The Global Rainbow

Global Rainbow is a large scale, spectacular outdoor laser projection created by the artist, Yvette Mattern. It consists of seven parallel beams of high specification laser light, representing the spectrum of the traditional seven colors of the rainbow, and is designed to be projected across large open sites, particularly densely populated areas. With the projection, the artist intends to encompass geographical and social diversity in its reach and symbolize hope. (via)

How Big would a Sphere of All Earth’s Water Be?

Imagine the Earth in your mind’s eye. Now round up all the water on the planet into a sphere (we’re talking oceans, icecaps, atmosphere, everything — even the water bound up in you and me). How big do you think that sphere would be compared to the Earth?