When the mainstream media calls an asteroid a “planet killer,” we usually tend to take it with a grain of salt since we know that eye-grabbing headlines like that draw attention. When a noted astronomer using a state-of-the-art ground-based observatory uses that phrase, we should sit up and listen. Well, get that spine straight and those ears perked because a leading astronomer and astrophysicist just released a paper describing two “planet killers” which have been hiding in the glare of the sun and regularly cross the path of the Earth. One of these “killers” is a mile wide and yet has been keeping out of sight in the sun’s bright glare. There is a possibility that more could be hiding there, but this one is the big concern right now because its orbit is slowly moving it to be in sync with Earth. Should we be worried?