by Mike Krumboltz There's an email making the rounds that claims that on the night of August 27 (that's tonight), the planet Mars will appear as large as the moon. Sounds sweet, but hold up. Before you invite your friends over for a rooftop viewing, we have some bad news: It's just a hoax. Web searches on " mars moon ," " two moons ," and " huge mars " have all been off the charts over the past several days due to the email. And that's understandable,