GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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According to scientists and astronomers, how long would a modern jet fighter take to cross our Milky Way galaxy?
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100 years
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10, 000 years
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100, 000 years
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1, 000, 000 years
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Explanation:
Detailed explanation-1: -It would take a modern jet fighter more than a million years to reach the nearest star to the Sun. Travelling at the speed of light (300, 000 km per second), it would take 100, 000 years to cross our Milky Way galaxy alone.
Detailed explanation-2: -Our galaxy probably contains 100 to 400 billion stars, and is about 100, 000 light-years across. That sounds huge, and it is, at least until we start comparing it to other galaxies. Our neighboring Andromeda galaxy, for example, is some 220, 000 light-years wide.
Detailed explanation-3: -If you only include that, then you travel 7.26 billion kilometres per year, or 479 billion kilometres overall.
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