DALLAS - The search for life around the universe will now take place around the clock.

The SETI (Search for Extraterrestrial Intelligence) Institute plans to have 42 radio astronomy dishes up and running in northern California by the end of 2007, which will enable it to scan the heavens for alien radio waves on a continuous basis.

"There are a number of groups around the world doing SETI research. They are listening for radio signals out there, but it is not 24/7," said Scott Hubbard, who holds the Carl Sagan Chair for the Study of Life in the Universe at the SETI Institute in Mountain View, California.