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Space
| Astronomical Unit | the average distance form the Earth to the sun about 150million kilometers = 1 AU |
| Planet | an object that orbits the Sun, has a spherical shape, and has a mass much larger than the total mass of all other object |
| Rotation | the time it takes an object to complete one turn on it's axis |
| Revolution | the time it takes an object to travel once around the sun |
| Sun | the largest body in our solar system around which the Earth and other planets revolve and receive heat and light |
| Mercury | the smallest planet and the nearest to the sun |
| Venus | the second planet nearest the sun visible as a bright morning or evening star |
| Earth | the third planet nearest the sun the planet which life is found |
| Mars | the fourth planet nearest the sun. Known as the red planet |
| Asteroid | large and small rocks or metallic masses orbiting the sun |
| Galilean Moons | the four largest of Jupiter's 63 moons; discovered by Galileo Galilee |
| Meteoroid | a natural chunk of rock or dust existing outside the Earth's atmosphere |
| meteorite | the remains of meteoroid that strike the surface of Earth or the Moon |
| meteor | a small meteoroid that burns upon entry of Earth's atmosphere |
| comet | a celestial body of ice, dust, and rock with an elongate and ellipitical orbit |
| Jupiter | the fifth planet nearest the sun. It is known for it's 7 bands of rings |
| Saturn | sixth planet nearest the sun. It's axis is so tilted that it seems to roll along its orbit |
| Uranus | the seventh planet nearest the sun. the axis is so tilted that it seems to roll along its orbit |
| space shuttle | reusable spacecraft that transport s people and materials to and from space |
| Mercury Mission (1958-1963) | The goal was to get a man and a rocket in space and back to Earth safely |
| Gemini Mission (1961-1966) | The goal was to develop docking methods, complete space walks, and improve re-entry into Earth's atmosphere. |
| Apollo Mission (1967-1972) | The goal was to land the first American astronaut on the moon and return safely to Earth. |
| Skylab (1973) | NASA's Science lab in space was intended to investigate if humans could survive longer in space, perform complex tasks, and complete experiments while in space. |
| Space Shuttle Mission (1981-2010) | A space vehicle used for near-Earth travel; not intended for deep space travel. |
| International Space Station (2000-present) | The ISS is a Science lab shared by many nations. It is a permanent residence to maintain and support a crew of astronauts. They perform many experiments and work together with other nations. |
| Orion spacecraft | A space vehicle to take humans into deep space. |
| Neptune | the eighth and final planet from the sun. It is similar to Uranus in size and has rings |
Created by:
jelena lalic
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