Newly-discovered asteroid will slip by Earth today at an incredibly close distance

NASA tracks hundreds upon hundreds of potentially hazardous objects that routinely cruise past our planet. Many of them have been known about for years or even decades, but more are being discovered all the time. In fact, over ten new potentially hazardous asteroids have been spotted so far in 2018 already, and a new candidate for that list will squeeze by Earth today at an incredibly short distance. The rock, named 2018 CB, is pretty small. It's only thought to be between 50 and 130 feet across...