
A nuclear bomb might one day deflect an asteroid and save Earth from a disaster.
No, nobody’s remaking Armageddon. It’s a real plan to deflect an incoming asteroid, and a recent lab experiment suggests that it might actually be feasible — not by blowing the asteroid up, but by heating its surface and letting the jets of escaping gas propel it onto a new course. Sandia National Laboratory physicist Nathan Moore and his colleagues published their work in the journal Nature Physics.