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The Southern UK, as seen from the International Space Station. (Posted by Commander Hadfield)

International Space Station silhouetted against the moon

International Space Station silhouetted against the Moon. It's amazing to think how insignificant we are in the whole scheme of the universe. Amazing that all the planets, moons, galaxies stay in the correct place in the universe.

I never tire of finding shapes in the clouds! These look very botanical to me. Simply perfect. Taken July 26, 2013 KN from space.

Pulsar pair ripples spacetime

Pulsar pair ripples spacetime: Duo’s tightening orbits provide even stronger evidence for gravitational waves

Why Solving Climate Change Will Be Like Mobilizing for War