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- The universe is a big place. A beam of light traveling at 186,000
- miles per second would take about 30,000,000,000 (30 BILLION)
- years to travel from one side of the observable universe to the
- other. SILICON UNIVERSE is designed to help you find your way
- around. Fundamental astronomical definitions are given in this
- section; the other INFO selections feature interactive
- illustrations.
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- STARS: Stars are objects like the sun - big, self-luminous
- sources of energy which, among other things, make life possible.
- Stars can wander the universe alone or be accompanied by
- companions, either other stars or planets.
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- GALAXIES: Galaxies, immense congregations of stars, gas and dust,
- are the basic building blocks of the universe.