From Phil Chapman's post (years ago on msnbc)

I must go out into space again, to a lonely place in the sky,
And all I ask is a swift craft and a star to steer her by,
And the countdown and the lift off and the g force growing,
And the MECO and the free fall, with the world's curve showing.
I must go out into space again, for the call of that rocket ride
Is a wild call and a clear call that may not be denied;
And all I ask is an apogee with the thruster roaring,
And a clean burn to a Hohmann arc, with the r-dot soaring.
I must go out into space again, to a star like a brilliant spark,
And the strange worlds that I'll find there, in the depths of the deepest dark;
And all I ask is a thrilling yarn from a fellow stellar rover
Of planetfall and xeno life, when the long trek's over.

Masefield with help from P Chapman