3 ms·

I'm guessing they don't know exactly how the wind currents are going to change over the course of it's flight.

• joering2 13y ago
  Yes, however winds would apply only to earth atmosphere. Most of its traction happens above earth atmosphere, right?
  • gibybo 13y ago
    The time it is affected by wind might still be enough to qualify its projected landing location as 'not exact'. Maybe they have a 200 mile radius projection or something. I could also imagine its non-spherical shape might present some challenges predicting its path as it rotates and 'flies' in slightly different directions.
  • sp332 13y ago
    What would cause drag besides the atmosphere?
  • maaku 13y ago
    > Most of its traction happens above earth atmosphere, right? What do you think is pulling it in?