the luminous celestial body around which earth and other planets revolve and receive heat and light!...
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The luminous celestial body around whichEarth and other planets revolve and
receive heat and light!
Sun
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Star
A self-luminous celestial body consisting of a mass of gas held together by its own
gravity in which the energy is generated by nuclear reactions in its interior
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Dwarf Planets
Objects that were bigger than small solar system bodies such as comets and asteroids but not
quite planets. There are five recognized dwarf planets: Pluto,
Ceres, Eris, Makemake & Haumea.
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Planet
• Any of the large celestial bodies that revolvearound the Sun in the Solar System
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Inner Planet
Any of the rocky, terrestrial planets of
Mercury, Venus, Earth, and Mars whose
orbits range is within the asteroid belt
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Outer Planet
Any of the planets Jupiter, Saturn, Uranus, and
Neptune whose orbits lie beyond the asteroid belt
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Moons
Moons are a natural satellite of a planetEarth’s moon (natural satellite) revolves around Earth from
west to east
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Galilean moons
The four largest moons of Jupiter
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Meteoroid
A natural chunk of rock or dust existing outside Earth’s atmosphere
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Meteor
Small meteoroid that burns upon entry of Earth’s atmosphere
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Meteorites
Remains of meteoroids that strike the surface of Earth or the Moon
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Asteroid
Piece of rock or metal made up of material similar to that which formed the planets that orbit the
Sun
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Comet
Consists primarily of ice, dust, and rock whose orbit is a long narrow ellipse
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Orbit
A curved path followed by a satellite as it revolves around an object in space
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Gravity
The force of attraction that pulls objects toward each other
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Solar System
The Sun together with the group of planets that are held by its attraction and revolve
around it!
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Space Probe
An unmanned spacecraft designed to explore the Solar System and transmit data back to Earth
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Space Shuttle
A reusable spacecraft designed to transport
people and cargo between Earth and space
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Space Station
A large artificial facility designed to be occupied for long periods and to serve as
a work space to conduct research
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Rocket
A spacecraft that gets power from an engine full of chemical propellants
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Rotation
The spinning of Earth on its axis that causes day and night to occur
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Revolution
Earth’s year-long elliptical orbit around the Sun
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NASA
National Aeronautics and Space Administration; Founded to combine all of the separate rocket development teams in the US to create new
rockets.