What if a big asteroid was speeding toward Earth… what are the 3 most realistic ways we could stop it? Option 1: You do nothing. There’s always a chance it misses us! Option 2: You SMASH A SPACECRAFT INTO it to change its course JUST ENOUGH that it misses Earth. Option 3... And there are two more wilder options as well. To see those, watch our longer video with Mark Rober and subscribe! #shorts #science #asteroid #space #earth #animation