UNIVERSE
SURVEY OF THE PLANETS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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One
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Eight
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Nine
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A few hundred
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Uncountable number
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Detailed explanation-1: -Our Sun is one of at least 100 billion stars in the Milky Way, a spiral galaxy about 100, 000 light-years across.
Detailed explanation-2: -The Sun belongs to a galaxy called the Milky Way. Astronomers estimate there are about 100 thousand million stars in the Milky Way alone. Outside that, there are millions upon millions of other galaxies also!
Detailed explanation-3: -Stars that pass in front of one another create distinct double-dips in brightness, which enabled the researchers to make the discovery. The five-star system is located 250 light-years away from Earth in the Ursa Major constellation.
Detailed explanation-4: -The phenomenon is called a circumbinary planet in a four-star system. A bit larger than Neptune and thought to be a gas giant, PH1 orbits its host stars every 137 days. Beyond the planet’s orbit approximately 900 times the distance between the sun and Earth, a second pair of stars orbits the planetary system.