Quote:
Originally Posted by frogstamper
The shear size of Cepheus's in comparison to our own Sun is incredible, like a grain of sand compared to a football. But if the Earth does survive the Andromeda event, we can look forward to our own Sun expanding into a red giant, apparently Mercury and Venus will be engulfed and the Earth rendered uninhabitable due to the extreme heat, but we have some time yet, about 6 billion years.  |
No necessarily so, its not "theoretically" that hard to change the orbit of the earth by shunting a reasonably large object into an earth orbit and pulling earth further away from the sun by using its gravity to alter our orbit. Then its simply a matter of building a Dyson sphere, emigrating and hey, bobs your uncle, were alright but the earth might get a bit nippy.
I'd expect that to be a piece of pie in 6 billion years, should buy us a wee bit longer before the sun, well, dies.