UNIVERSE
SURVEY OF THE PLANETS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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alien ones
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unknown planets
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far, far away stars
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exoplanets
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Detailed explanation-1: -An exoplanet is any planet beyond our solar system. Most orbit other stars, but free-floating exoplanets, called rogue planets, orbit the galactic center and are untethered to any star.
Detailed explanation-2: -The prefix exo is short for extrasolar, meaning beyond the Sun, so exoplanets are just planets that orbit stars other than our Sun.
Detailed explanation-3: -The planets beyond our solar system are called “exoplanets, ‘’ and they come in a wide variety of sizes, from gas giants larger than Jupiter to small, rocky planets about as big around as Earth or Mars. They can be hot enough to boil metal or locked in deep freeze.
Detailed explanation-4: -Astronomers report the discovery of two new exoplanets orbiting a bright sun-like star about 175 light years away. The newfound alien worlds, designated HIP 104045 b and HIP 104045 c, were classified as a Jupiter analog and a super Neptune planet, respectively.
Detailed explanation-5: -Almost all of the planets detected so far are within the Milky Way. However, there is evidence that extragalactic planets, exoplanets farther away in galaxies beyond the local Milky Way galaxy, may exist.