Finding Them, Finding Us

"So how far away can

This question, which I'm

"Sure," I sense

One way to address this is

Well, you can forget that –

Another important point is

So what's the bottom line? I'll

The carrier would tell them

Grote Reber built the first

Let's consider some other

One last example, just for

It comes down to this: When

VIDEO: Figure the Odds of E.T.!
Scenes from SETI@Arecibo
All About

Seth Shostak is an astronomer at the SETI (Search for Extraterrestrial Intelligence) Institute in Mountain View, California, who places a high priority on communicating science to the public. In addition to his many academic papers, Seth has published hundreds of popular science articles, and not just for Space.com; he makes regular contributions to NBC News MACH, for example. Seth has also co-authored a college textbook on astrobiology and written three popular science books on SETI, including "Confessions of an Alien Hunter" (National Geographic, 2009). In addition, Seth ahosts the SETI Institute's weekly radio show, "Big Picture Science."