Chief scientist Mark Baumgartner secures a glider (with its wings removed) after it was recovered Dec. 4 from its three-week mission. The gliders are equipped with an underwater microphone and an iridium satellite antenna. The vehicle surfaces every few hours to get a GPS position and transmit data to shore-side computers.

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Chief scientist Mark Baumgartner secures a glider (with its wings removed) after it was recovered Dec. 4 from its three-week mission. The gliders are equipped with an underwater microphone and an iridium satellite antenna. The vehicle surfaces every few hours to get a GPS position and transmit data to shore-side computers.