Day December 4, 2013

A Quiet Trip to the Ozone Hole

BEND, Ore. — It might be the weirdest part of the atmosphere, 15 miles above the polar regions, where vast stratospheric clouds of nitric acid and water vapor shimmer in iridescent pink while human-made chemicals play havoc with the ozone…

The Unlikeliest Astronaut

Mike Melvill’s journey into space Alone in the sleek, composite shell of an experimental spacecraft he helped build, suspended beneath the broad wings of the White Knight carrier airplane, test pilot Mike Melvill is glad to finally get busy. The…