Universe - All matter and energy that we are aware of, galaxy - A collection of stars, solar systems and dust held together by gravity, solar system - A system of objects such as planets and asteroids that orbit a star, star - A large luminous mass of gas and plasma which emits light, planet - A large spherical object which orbits the sun, moon - Also known as a satellite, it is an object in orbit around a planet, day - Time it takes for a planet to turn once on its axis, year - Time it takes for a planet to orbit the sun, lunar eclipse - Earth blocks sunlight from reaching the Moon, solar eclipse - the Moon passes between the Sun and Earth, goldilocks zone - A zone around a star that is not too hot or too cold to have liquid water on the surface, gravity - Force that attracts objects towards each other, weight - a force caused by the gravitational pull on an object., mass - How much matter there is in an object, gravitational field strength - How strong the gravitational field of an object is that attracts other objects to it,

BGE Space keywords

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