… because it isn’t sexy or sensationalistic:
The article notes early on:
William Borucki, the principal investigator of NASA’s Kepler mission, said he’s very surprised at the lack of evidence of extraterrestrial life, given his work discovering habitable planets outside our solar system . . . “Up till now, it was just an intellectual question. It isn’t anymore. There could be 10 billion civilizations or none. The evidence certainly is none,” Borucki said in an interview with the Hong Kong newspaper Thursday. ”The evidence says no one’s out there.”
But what about the Drake Equation? It’s a vapor, because each item in it is literally made up.