Don't you think that it would be wise to give up your space trip?

He wasn't sleepy; during the space trip, his circadian rhythm had slipped out of phase with this area.

Smart-1 is using a slow-acceleration ion drive, testing the technology for future space trips.

I'm never taking another space trip except maybe the one that takes me back to Earth.

That changed only after the space trip, which led to him being celebrated as a national hero.

Ever since we arranged to have her go off on a space trip this summer, she's been quite excited.

"And just why has no one told me about this space trip?"

I can see where that might be a virtue on a long and boring space trip.

After a while, she got to thinking about her recent space trips.

Getting their ships loaded and ready for another long, deep space trip was no easy matter, even when done slowly.