space-travelling adj.

Following them in our new space-traveling rocket ship, we rescued Tallan.

After years of intense effort, Lowell’s great genius had finally perfected the space-traveling mechanism, which had given us our first successfuly trial flight into the vacuous reaches of out space hundreds of miles beyond the earth’s last trace of atmosphere.

This was, this could only be, an artificially created mass, an intelligently directed body, another space-travelling vehicle for an intelligent race!

The countless races of men in this frame of space would be neglected and permitted to degenerate into lawless bands of space[-]traveling pirates.

Somebody once suggested that the ones [sc. fairies] in the story books were the space traveling ancestors of the present-day hallucinations.

Tom and his space-traveling crew always best their adversaries, but there is one threat forever lurking.

I never heard of a space-traveling race that builds such big things for mere monuments.

The galaxy is really not a big place at all, not with respect to space traveling aliens.