It's known as a "catastrophic cataclysm resulting in the end of most if not all life on Earth".
Technically, if it hits the Earth it's not an "asteroid", it's a "meteorite". And yes, meteorites hit the Earth all the time.
Asteroid can last up to 100 years before it hits earth.
crater
Meteorite.
Depends entirely on the impacting speed and the size of the asteroid. Generally an asteroid impact is not going to bode well for life on Earth
Meteor or asteroid
it depends on the size.
crushed
asteroid
True... the asteroid belt can be found between the orbits of Mars and Jupiter.
ey big back!
If its big enough... It can kill a lot of people