Human spaceflight has brought us beyond Earth, but we could potentially venture even farther.

Imagine that we could constantly accelerate at the same rate as Earth's gravitational pull, 9.8 m/s2, indefinitely.

While you'd initially speed up, you'll rapidly approach the speed of light.

Owing to Einstein's Special Relativity, time will dilate and lengths will contract.

And then things get weird.  To read more, click here.