A powerful robotic lunar scout, NASA's first in more than a decade, arrived at the moon early Tuesday on a mission to seek out potential landing sites and hidden water ice for future astronauts.
Officials investigating Washington D.C.'s worst subway accident, which left at least nine dead, are eyeing whether the failure to upgrade old trains with key recording devices designed to prevent such collisions contributed to the crash.
Tropical Storm Andres was expected to grow into the Pacific season's first hurricane Tuesday and deal a glancing blow to southwestern Mexico before churning its way up the coast past picturesque towns popular with foreign retirees.
French military ships searching for the black boxes of Flight 447 have detected sounds in the Atlantic depths but they are not from the flight recorders, a French official said Tuesday.
Intelligence officials say three suspected U.S. missiles have hit a reported Taliban training center in northwest Pakistan, killing at least three people.
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