Armageddon

In the movie Armageddon, an asteroid the size of Texas is headed
toward Earth. They solve this problem by drilling 800 feet into the
asteroid, putting explosives down the hole, and blowing it up.
However, it seems that would certainly not have worked with an
asteroid that size. I've also heard "solar sails" suggested as a
solution for dealing with something like that, but it seems that would
not work either for an asteroid that big. If an asteroid that size
was on a collision course with Earth, could anything be done to stop
it under modern technology? The only possible solution that I can
think of for survival would be to leave Earth and take up refuge in
space or on the Moon during the impact, and maybe the few who could do
that could come back some time later.

In my film script, there is a scientist (Anthony Hopkins) who travels
to
Europa, the only possible habitable moon in our solar system). However
traveling alone, he goes insane and sort of hallucinates in becoming
something else than human. But the purpose of his travel in a near
21st century time is to take the first steps in working on the
possibility
for humanity to move to Europa one day in the case of a disaster you
speak of or of the catastrophy that is expected to occur in regards to
global warming if nothing is done in the next five years. In this
story
things have gone worse and a catastrophic warming began on Earth.