Dolphins joined the world's largest military maritime exercise in search of mines buried at the bottom of the sea.
The Navy's unmanned undersea vehicles (UUVs) are essentially "pre-programmed, small submarines."
Last October, Knifefish successfully completed sea trials testing its ability to detect mines at various depths.
Thirty-two teams are duking it out for an underwater robotic supremacy title.
The Russian Navy reported that its submarines spent more than 3,000 days on patrol last year, matching Soviet-era operations.
Lt. Col. Anne McClain is one of three currently serving active-duty Army astronauts.
Other suppressors in past tests have not been able to stand up to the heat and roar produced by the 7.62mm M240.
The return of the Nimitz is to provide security for the drawdown of troops from Afghanistan and Iraq.
SOG teams were primarily tasked with strategic reconnaissance deep behind enemy lines.
Capt. Kelliann Leli, 30, of Parlin, N.J., was assigned to the 60th Healthcare Operations Squadron.