Helium - The sun is constantly changing hydrogen into _________. , Milky Way - Our home galaxy., Photosphere - The layer of the sun we see. , Corona - The outermost 'halo' of the Sun. , Terrestrial - Another word for the rocky, inner planets. , Jovian - Another word for the outer Gas Giant planets. , Asteroid belt - The collection of asteroids and other space debris, which separates the inner and outer planets. , Revolution - The orbit of a planet once around the Sun. , Rotation - The spinning of a planet on its axis. , The sister planet of Earth, described as it's Evil Twin. - Venus, Astronomical Unit - The distance between the sun and a planet. The distance between Earth and the Sun is used as a standard for comparison. , The planet that spins sideways, like a rolling beach ball instead of a top. - Uranus, Europa Clipper - Mission to Jupiter launched in October 2024, set to arrive in 2030, which has the goal of looking for signs of life on this moon. , Comet - Celestial object made of ice, dust, and gas, with a distinctive tail. , Meteor - Rocky object that enters the atmosphere. , Meteorite - Rocky object that enters the atmosphere and strikes the ground. , Hydrogen - Highly flammable gas that the Sun uses as fuel; main gaseous component of the Gas Giant planets. , Orion Arm - Specific location in our galaxy where we reside. , Kuiper Belt - Region beyond Neptune that contains icy objects like comets and dwarf planets. , Oort Cloud - Sphere of orbiting rocks and icy objects surrounding the solar system. , Mercury - First planet from the Sun. , Venus - Second planet from the Sun. , Pluto - Officially classified as a dwarf planet now, rather than being the 9th planet. , Ceres - Dwarf planet in the asteroid belt. , Mars - The 4th planet from the sun with a thin CO2 atmosphere that is littered with robots. , Jupiter - The largest planet, a failed star, 5th from the Sun. , Saturn - The infamous ringed planet, 6th from the Sun. , Uranus - The planet that was almost named "George," the 7th planet from the Sun. , Neptune - 8th planet from the Sun, one of the ice giants.,

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