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When an astronaut travels into space, he observes that the distance between the planets is increasing, as the astronaut move farther from the central star. Rocky pieces are also found to be floating in between the planets. These are the bands of pieces, which may be present in different shapes. 

The space traveler would notice that the distance between the planets is increasing, as the astronaut move farther from the central star.

Who is an astronaut?

An astronaut is a person whose specialty is traveling into space. An astronaut is a well trained scientist, who study things like asteroids and earth's atmosphere in outer space.

The observation made by an astronaut is that he would notice rocky pieces found to be floating among several planets.

Hence, the space traveler would notice that the distance between the planets is increasing, as the astronaut move farther from the central star.

Learn more about astronaut here : https://brainly.com/question/20049384

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