But an attempt to get a soil sample may have failed
                                
                                
                                    (Newser) -
                                    Before its battery  petered out , the small spacecraft that landed on a moving comet managed to detect organic molecules on the comet, reports  NBC News . An instrument aboard the Philae lander essentially sniffed the atmosphere and found evidence of the molecules, which, as the  Wall Street Journal  explains, are the...