In the financial world, some shares have new owners every second. Today, much of the buying and selling is done by computers, but many trades still rely on human intuition—the gut feeling of the experienced trader.
by Xaq Rzetelny July 10 2014
Two exoplanets, once considered excellent candidates in the search for life elsewhere in the Universe, do not exist, according to a new study in the journal Science. Both non-planets, Gliese 581d and 581g, were thought to be part of the Gliese 581 star system, located only 20 light-years away.