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17 Cards in this Set
- Front
- Back
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Orbit |
the curved path of a celestial object |
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Solar System |
the collection of eight planets and their moons in orbit around the sun |
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Spacecraft |
a vehicle used for traveling in space |
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Gravity |
the force that attracts a body toward the center of the earth |
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Orbital Velocity |
The velocity at which a body revolves about another body |
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Weightlessness |
having little weight |
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Spacesuit |
garment designed to allow an astronaut to survive in space |
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Radiation |
the emission of energy as electromagnetic waves or as moving subatomic particles |
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Satellite |
artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication |
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Rover |
a space exploration vehicle designed to move across the surface of a planet or other celestial body |
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Astronaut |
cosmonaut is a person trained by a human spaceflight program to command |
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Microgravity |
is the condition in which people or objects appear to be weightless |
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Vacuum |
a space entirely devoid of matter |
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life Support System |
an artificial or natural system that provides all or some of the items (as oxygen, food, water, control of tempera necessary for maintaining life or health |
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Apollo 13 |
the seventh manned mission in the American Apollo space program and the third intended to land on the Moon. |
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Neil Armstrong |
was an American astronaut and the first person to walk on the Moon. He was also an aerospace engineer, naval aviator, test pilot, and university professor |
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NASA |
The National Aeronautics and Space Administration |
