The surface became a dark mirror as we cut the motors, taking in the guttural whoops, whines, trills and clicks around us.

BBC: Taming the heart of the Peruvian Amazon

In the front hall, on the back of the front door, I hung a mirror framed in a dark wood that matched the color of the umbrella stand.

NEWYORKER: Miracle Polish

Woods, however, is a prodigy who still loves to play, and it's hard not to be impressed by Haney's recollections of Woods' determination and work ethic practicing in the dark, spending hours in the mirror working on his swing.

WSJ: The Masters: Tiger Woods and His Conspirators

And dark energy may turn out to be almost the mirror opposite of gravity - a repulsive rather than an attractive force, and one that strengthens with distance rather than weakening.

BBC: Getting the measure of dark energy

In his mirror-paneled dressing room sit rows of neatly folded dark-blue sweaters and about three dozen jackets.

WSJ: The Future of Armani