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Mesmerizing GIFs of Breathing Earth

The biodiversity of Earth as we know it is made up of millions of species—from Baobab trees to narwhals to tiny anemones attached to the ocean floor. But can we think of Earth in a holistic way, as one living entity of its own, instead of the sum of its parts? This is what John…

Sperm Works Best in the Winter, Study Finds

Spring may be when a young man’s fancy turns to love, but new evidence suggests that it’s winter when his sperm is at its spunkiest.

Exploring Uranus

Sometimes it seems like being large, distant, and gassy is a major turn-off for space engineers—unless you’ve got great eyes or lots of jewelry. Of the eight recognized planets in our solar system, the terrestrial worlds are by far the in-crowd as far as scientific orbiters are concerned, with Mars and Earth as the obvious…