Weighing Planets And Why Aliens Can Hear Us
g ABODES - Researchers have come up with a new way to weigh the planets in our solar system using radio signals from pulsars. A better understanding of the conditions present in our solar system will ultimately aid astrobiologists in the search for habitable worlds around distant stars. See article.
g MESSAGE - When someone tells you the aliens couldn't possibly hear us, you can just smile politely. The truth is, they could. And what about us hearing them? We've only had radio for a century. Some extraterrestrials have surely had it for a hundred or thousand times longer. If our signals are detectable, theirs might be far more so. See article. This article is from 2008.
g IMAGINING - A complaint lodged again and again against science fiction aliens is that they look too much like us. Is that complaint valid? Is it so unlikely that extraterrestrials would look at least similar (though not identical) to humans? If so, then what would beings, intelligent or not so intelligent, who evolved on another world look like? That's what Cliff Pickover explores in "The Science of Aliens". Though the book is a few years old, it's still worth reading.
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