Astronomer Philip Plait is tired of radio personality Richard Hoagland's claims. He's had enough of Hoagland's assertions that NASA is covering up evidence of extraterrestrial life, that the infamous Face on Mars was built by sentient aliens and, of late, that otherworldly machine parts are embedded in the red planet's dirt. And then there's the mile-long translucent Martian worm. On Hoagland's web site, there are several images from various space probes said to possibly show evidence for ET. Recent Mars rover photos include not just rocks, Hoagland and other contributors maintain, but common objects that might tell of alien civilization...
