What happens when some asteroid comes in the way of warp drive?

Recently Harold white, NASA scientist shared his knowledge and the things he is working on. That is Warp drive for interstellar navigation. This spaceship compresses the space in front of it and expands the space behind it. So the ship is able to move faster than light. In stead it moving it just warps the space around it. According to Einsteins General theory of relativity its possible.

Now I am thinking what will happen when some asteroid or big mass come in front of it, when its in motion. I cant think of anything.

Anybody has any idea?

• This might seem like SciFi/fringe physics, but it's actually pretty interesting. What kinetic energy does a spaceship have in Alcubierre's and similar schemes? It's probably tricky to even define $E_{kin}$ in warped spacetime. There are two extremes I could see happen: the asteroid strikes the ship with extreme energy like in a kinetic bombardement; or the asteroid enters the area of curved space and then just sits in front of the ship. Maybe it is even deflected, because the geodesics do around the ship? It would be instructive to see how to calculate the kinetic energy and the geodesics... – jdm Jun 20 '14 at 9:10