ISP 205: Visions of the Universe - Physics & Astronomy
ISP 205: Visions of the Universe - Physics & Astronomy
ISP 205: Visions of the Universe - Physics & Astronomy
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Answer: D, <strong>the</strong> distance across <strong>the</strong> U.S.Question: Explain why itis so difficult to seeplanets around o<strong>the</strong>rstars. How do you thinkscientists have observed<strong>the</strong>m?Closest star, Alpha Centauri is4.4 light years away.© 2005 Pearson Education Inc.,publishing as Addison-WesleyIt took Voyager 12years to exit Solarsystem, it wouldtake him 100 000years to arrive toAlpha Centauri!