We all know that our solar system is a vast and unexplored mystery. Throughout the years, scientists have collected data, conducted experiments and engaged in observations on our solar system. With this research, we have learned much about the different components that make up our universe. Some of the main objects that exist in space include planets, stars and moons. Although these three particular extraterrestrial objects are fairly familiar to many of us, do you really know the difference between them
Earth is a planet because it is an object in space that orbits around a star. Each planet has different properties that might be more pronounced in one planet than another, such as density levels and chemical compositions. The various planets in our solar system vary in atmospheric pressure, distance from the sun, and even in color. For decades, scientists classified now dwarf planet Pluto as the ninth planet in our solar system. The International Astronomical Union set a refined definition of what it meant to be a “planet,” which excluded beloved Pluto from the list of eight other planets in our solar system.
Earth’s moon plays a role in our daily lives. However, moons, also known as natural satellites or secondary planets, also exist for and orbit around other planets in our solar system. Moons are referred to as “celestial bodies” that orbit around a planet. The planet, or any other smaller celestial object, is called the moon’s “primary.” All eight planets in our solar system have at least one satellite each, varying in size and other attributes.
To tie everything in our solar system together, we have the sun. The sun is a star, and it is the source of most of Earth’s energy. For clarification, a star is essentially a giant, glowing sphere of plasma that is kept intact by gravity. Some stars are visible from a human standpoint during the night, and these stars also group together in places to form constellations and other astronomical formations.
This basic knowledge about the solar system is sure to enrich your scientific knowledge so that you can help your child when the time comes for them to learn more about our solar system. Encourage your child to use their imagination, and perhaps design and name their own planet. Whatever interesting ideas your child comes up with, continue to help them find inspiration in all the things they learn.
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