The interplanetary flight took just a few minutes.

Were it not for the final catastrophe, we would have soon overcome the obstacles of interplanetary flight.

The first interplanetary or intersystem flight in my life.

As time went on, we humans got ;)otter at interplanetary flight.

In orbit about any world, or in interplanetary flight, you are literally weightless.

He considers the Soviets' long-duration space station program a test for manned interplanetary flight.

It will shed a segment that supported its interplanetary flight.

Krasna had never been more than an interplanetary flight or an interstellar Jump away.

Our long absence from space has lost us some of our skills in interplanetary flight.

Under the stimulus of Free Scientist encouragement man achieved interplanetary flight.