It is about to get a bit deeper. On a high, arid plain about 400 miles northeast of Cape Town, South Africa, an array of 64 white antenna dishes called MeerKAT peers deep into space. That kind of research generates staggering quantities of data. By 2020, a supercomputer should begin analyzing it for even the faintest electronic signal suggesting that someone's out there. Astronomers hope to survey 1 million stars within five years, about 1,000 times more than any project before it. "There's some chance we're going to see a signal, that we're going to make a detection," says University of California at Berkeley astronomer Andrew Siemion, who leads the project. He and his colleagues may yet find the evidence that they're sure is out there, waiting to be discovered.