posted on Dec, 17 2012 @ 11:47 PM
I'm not clear on why these asteroids are considered, or at least *termed*, "potentially hazardous" objects, if they are known to not be on a
collision course with the Earth. I thought maybe it was because when they are first discovered their trajectories can't be calculated precisely
enough to say they're not going to collide, but then there are those that are discovered and have an initial trajectory known to be safe, but
they're still put on the "potentially hazardous" list.
I understand that the term is given to objects coming within 0.05 AU (NASA
), but why are they
considered "potentially hazardous" if they have zero chance of hitting us, or sometimes of even getting close to any satellites? Why not just call
them "very near Earth" objects, and dispose of the potential for misguided fear?