Incoming massive comets can also pull other gravitational bodies into the inner solar system along with them
On Sun, Feb 3, 2013 at 5:23 PM, Axil Axil <[email protected]> wrote: > http://en.wikipedia.org/wiki/Gravitational_keyhole > > The danger is not over. > > A *gravitational keyhole* is a tiny region of space where a planet's > gravity would alter the orbit of a passing asteroid such that the asteroid > would collide with that planet on a given future orbital pass. > > On Sun, Feb 3, 2013 at 5:14 PM, Eric Walker <[email protected]> wrote: > >> On Sun, Feb 3, 2013 at 1:08 PM, Jones Beene <[email protected]> wrote: >> >> asteroid - and determined that in the unlikely event it hit something >>> fairly >>> large in Earth orbit, the asteroid orbit could not be deflected >>> substantially enough to be at risk. >>> >> >> If the mass of an orbiting satellite is sufficient to deflect the >> incoming asteroid, I doubt the asteroid is big enough to do much upon >> impact. If the asteroid is big enough to do much, I doubt the mass of a >> satellite would deflect it even by a small amount. >> >> Eric >> >> >
