Solar System and Beyond

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What is the Solar System?

Back

The Solar System is a collection of celestial bodies, including the Sun, planets, moons, asteroids, and comets, that are bound by gravity.

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What is the Milky Way Galaxy?

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The Milky Way Galaxy is the galaxy that contains our Solar System, composed of billions of stars, including the Sun.

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What is a galaxy?

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A galaxy is a massive system of stars, gas, dust, and dark matter, held together by gravity.

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What is the Sun?

Back

The Sun is a star at the center of our Solar System, providing light and heat to the planets.

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What are the inner planets?

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The inner planets are Mercury, Venus, Earth, and Mars; they are rocky and smaller than the outer planets.

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What are the outer planets?

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The outer planets are Jupiter, Saturn, Uranus, and Neptune; they are large, made of gases, and have no solid surface.

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What is gravity?

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Gravity is the force that attracts two bodies towards each other, keeping planets in orbit around the Sun.

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What is a comet?

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A comet is a small celestial body made of ice, dust, and rocky material that, when close to the Sun, displays a visible atmosphere or tail.

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What is an asteroid?

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An asteroid is a small rocky body that orbits the Sun, primarily found in the asteroid belt between Mars and Jupiter.

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What is a planet?

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A planet is a celestial body that orbits a star, is spherical in shape, and has cleared its orbit of other debris.