A recent press release from the Office of Naval Research has spawned two new stories about Slocum Gliders in Cosmiverse and Cyber Diver News. In addition to the Slocum Glider, which has been covered at robots.net in the past, the articles mention another Autonomous Underwater Vehicle (AUV), the University of Washington Applied Physics Laboratory's Seaglider. The Seaglider is interesting in that it uses dead reckoning while underwater, occasionally checking its position by surfacing and obtaining a GPS fix. Both AUVs were originally designed for long-term oceanographic research but are being tested by the Navy for possible military applications such as mine countermeasure operations.