Navy researchers hope to use lasers for sonar detection or communicating with underwater submarines.
Flashy lasers should not make any sound in space, despite what "Star Trek" and "Star Wars" would have people believe. But lasers aimed underwater can and do create small supersonic explosions.
It's not just a light show. Naval researchers hope to use lasers for sonar detection, or even submarine-to-aircraft communication.
"The lasers we're using in experiments now are pretty compact," said Ted Jones, a physicist at the U.S. Naval Research Laboratory. "They're smaller than desk-sized and could fly on an aircraft."
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