What is a burst of energy and particles from the sun. It releases gases, radiation waves, and magnetic storms.
Solar flare
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15
What is an object that orbits another object. A moon is actually this. We also say X to refer to spacecraft people build that orbit Earth, other planets, moons, asteroids, or other objects out in space.
Satellite
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15
What is a natural object that travels around a bigger natural object.
Moon
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What is a vehicle used for traveling in space.
Spacecraft
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What is a place in space where matter and light cannot escape if they fall in.
Black hole
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What is an icy rock that lets off gas and dust, which may form tails when it is flying close to a sun.
Comet
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15
What is the gases held by gravity around Earth and around other planets. It can also be used to talk about gases around stars.
Atmosphere
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15
What is a part of Earthโs atmosphere that absorbs lots of the sunโs ultraviolet radiation. It is made of a gas called ozone, which is a molecule of three oxygen atoms.
Ozone layer
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15
What is a set that includes a star and all of the matter that orbits it, including planets, moons, asteroids, comets, and other objects.
Solar system
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What is the curved path that a planet, satellite, or spacecraft moves as it circles around another object.
Orbit
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What is a large, bowl-shaped dent in the ground. They can be caused by an explosion or the impact of a meteorite.
Crater
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15
What is all of space and time, and everything in it. Itโs everything ever!
Universe
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15
Itโs not a year, or an amount of time at all. Itโs the distance light travels in one year. Itโs the same as 5,878,499,810,000 miles (or 9,460,538,400,000,000 meters). When things are very far away, itโs easier to talk about their distance i