And “the one-way trail” is the trail over which there is no returning.
Unfortunately, at that distance, the connection was one-way.
The one-way trip is an easy day's journey from Glacier Point.
A one-way rocket to the moon and he tells me the toughest part's over.
Nearly 90% of its weight was fuel, for the one-way trip to Mars.
And as he watched his thoughts reverted ...