Messenger's mercury flight reveals water source
Houston Chronicle: Mercury, the planet closest to the sun, appears to have at least one source of water, even though the temperatures on the tiny planet soar to 800 degrees Fahrenheit.
The existence of the water source on the dry, cratered planet was just one of the findings gathered by the Messenger spaceship when the unmanned craft sped within 124 miles of the planet on Jan. 14. NASA scientists described the observations last week.
