Fifty years ago this month, the U.S.S.R. launched Sputnik 1, the world's first Earth-orbiting artificial satellite. Shocked into action, the U.S. ramped up its space program—and its science education.
There's more to a mountain than the summit.
Two years after its big quake, Christchurch is still trembling.
The wonderful world of mucus
A lone cedar embodies the determination and resilience of the Ojibwe people.