The Ultimate List of Reasons We Know the Earth is Definitely Round

In case you had any lingering doubts, here is some masterful cosmological/geological/geometrical instruction on our planet and its spherical — but not perfectly spherical — tendencies, courtesy of the ever-capable Henry Reich (better known as the creator, animator and narrator of MinutePhysics). Some great, if not… » 1/03/13 2:24pm 1/03/13 2:24pm

Kaguya Satellite Shoots Stunning Earthrise and Earthset Videos

This is an absolutely stunning (and completely real) video of Earthrise on the Moon. Every once and a while we need a jolt to remind us just how small and fragile our little blue marble Earth is. The Japanese Kaguya satellite has delivered with these jaw-dropping high-definition videos of what Earthrise and Earthset… » 5/13/08 2:06pm 5/13/08 2:06pm