UNIVERSE
MARS EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It’s a group of smaller bodies such as animals and people
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It’s a group of smaller bodies such as people and stars
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It’s a group of smaller bodies such as planets and people
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It’s a group of smaller bodies such as planets or asteroids that orbit one one or more stars.
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Detailed explanation-1: -Generally speaking, systems with one or more planets constitute a planetary system, although such systems may also consist of bodies such as dwarf planets, asteroids, natural satellites, meteoroids, comets, planetesimals and circumstellar disks.
Detailed explanation-2: -The small bodies in the solar system include comets, asteroids, the objects in the Kuiper Belt and the Oort cloud, small planetary satellites, Triton, Pluto, Charon, and interplanetary dust.
Detailed explanation-3: -Planetary system refers specifically to anything orbiting a star that is not a star itself. According to Wikipedia, this generally refers to the planets, but may include other objects like asteroids and dwarf planets. It does not refer to the star itself.
Detailed explanation-4: -Celestial bodies or heavenly bodies are objects in space such as the sun, moon, planets, and stars. They form a part of the vast universe we live in and are usually very far from us.
Detailed explanation-5: -Asteroids are rocky celestial bodies that orbit the Sun, but do not meet the requirements to be classified as a planet. The term asteroid covers a very broad range of Solar System objects, including debris left behind by objects that did not successfully grow into planets.