If you find a meteor in a crater in your back yard, don't touch it, it will crack and some alien gelatinous mass will crawl up your arm and dissolve and digest you, and grow larger as it consumes other people until it ends up oozing through a floor grate into a busy movie theater, and then tries to eat through a diner to get to the customers until it's frozen with fire extinguishers by the townspeople and dropped in the Arctic by an Air Force transport. So DON'T TOUCH IT!
Well, there's lots of explanations of the noise on here, and possible dire consequences from coming in contact with something from outer space! But is there a possibility it might be some of the junk we've left scattered all around the world, at varying altitudes? They say it's getting dangerous out there, due to all the crap we humans have thrown into orbit!