* Astronomy

Some scientists want to send signals into space in search of aliens but others warn we may get more than we bargained for.

At an astrobiology conference in Texas in April, SETI enthusiasts will discuss new methods of discovering extraterrestrial life, including sending out interstellar messages. Alexander Zaitsev, a Russian scientist who has already beamed out four carefully composed signals to nearby stars, has been invited to attend.
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Astrobiology Science Conference
April 26-29, 2010 
League City, Texas