![]() It consists of our star, the Sun, and everything bound to its gravity, such as the planets, moons, asteroids, comets, and meteoroids. The universe we call home is located in an outer spiral arm of the Milky Way galaxy. Our solar system is about 4.5 billion years old. We will go through plenty of fun, interesting astronomy facts, so strap in! 1. It also includes dwarf planets like Pluto, many moons, and millions of asteroids, comets, and meteoroids. It resides in the Milky Way Galaxy and includes planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Our solar system consists of the Sun and every celestial object bound to it by gravity. Enceladus reflects 90% of the Sun’s light.Scientists discovered a hydrogen signal from a galaxy located five billion light-years away.Neutron stars rotate at a speed of 600 times per second.Astronomers have made more than 1.4 million observations using the Hubble Space Telescope.A person who weighs 220 pounds (100 kg) on Earth would weigh only 84 pounds (34 kg) on Mars.The Moon is drifting away from Earth at a rate of 1.5 inches (3.8 cm) a year.Our solar system is about 4.5 billion years old.Top Astronomy Facts and Stats: Editor’s Choice
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