16 August 2004, 06:30 AM ET
With a new spacecraft bound for Mercury, that tiny planet at the heart of the solar system, researchers are hoping to solve a slew of riddles about the small world. Among the odder Mercurian attributes scientists hope to test is a theory that the planet i
02 August 2004, 06:56 AM ET
Thunderstorms and the threat of lightning early today forced NASA officials to scrub their launch of the agency’s first space probe to Mercury in 30 years.