What guide had I through the trackless waste of interplanetary space?
The aliens waited, watched, but did not pursue them into interplanetary space.
Why have you stopped me in free interplanetary space?
If that happened, all the air in the bay would rush out into interplanetary space.
The only place he could exert his influence would seem to be with the high military brass, out in deep interplanetary space.
These measurements have never been done before from the inside of a spacecraft in interplanetary space.
However, no serious attempt has been made to reach interplanetary space.
He wrote about living on small asteroids in interplanetary space.
First there is the near future, the exploration of interplanetary space during the next quarter-century.
As if he'd been whisked away into the darkness of interplanetary space.