One Gee

Here is an interesting calculation which says that if you could travel with a constant acceleration of 1 Earth Gravity (1g) then you could get to the edge of the observable universe in 25 years of your time. Quite a few more years would have elapsed on Earth of course, but to an observer on Earth - you would never be travelling faster than the speed of light. I wonder what it is like to ride a beam of light? :-) 50 billion light years in 25 years without travelling faster than the speed of light! That's the Lorentz Contraction of distances when moving at relativistic speeds for ya.

Time elapsed on spaceship in years	Time elapsed on Earth in years	Distance travelled in lightyears	To
alpha	sinh(alpha)	cosh(alpha)- 1
0	0	0	Earth (starting point)
1	1.175	.5431
2	3.627	2.762
2.337	5.127	4.223	Proxima Cen
3.962	26.3	25.3	Vega
6.60	368	367	Pleiades
10.9	2.7×104	2.7×104	Centre of Milky Way
15.4	2.44×106	2.44×106	Andromeda galaxy
18.4	4.9×107	4.9×107	Virgo cluster
19.2	1.1×108	1.1×108	Coma cluster
25.3	5×1010	5×1010	Edge of observable Universe