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1) How big is the universe?
2) How many rings are around Saturn?
3) How many people have been on Saturn?
4) Are there any planets past Planet X?

1) A quasar discovered in 1991 is believed to be about 14 billion light years away from us, and is the most distant object known. It is moving away from us at a speed very close to the speed of light, so it is near what we call "the edge of the observable universe", though it is not really an edge at all.

2) Saturn has 7 main ring systems, denoted A, B, C, D, E, F, and G. Each one is made up of billions of particles, ranging in size from that of a grain of sand to chunks as big as a house.

3) No people have been to Saturn (yet).

4) Most astronomers believe that our solar system has only 9 planets. There is very probably no Planet X, let alone any planet beyond it (in our solar system, anyway).

RC Winther

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