how do you think the world will end?

[tedsteriscool]

ManusJustus said:

NinjaBlade360 said:
in 4.5 billion years the sun will enter its red giant phase and will grow in size to the point were its in our orbit ether a,b or c will happen

a we will be swallowed by the sun

b the force of gravity will push the mercy Venus earth and mars each others orbits and it would cause collisions between planets

c the force of gravity will eject the earth form the solar system

Beat me to it...

This.

 

It happens with stars, and the sun is definitely a star. It's only a matter of time (still a long way away though).