a gravitational attraction of the mass of the earth, the moon, or a planet for bodies at or near its surface.

something resembling a spinal colum or constituing a central axis or chief support.

National Aeronautics and Space Administration.

of, relating to, or affecting two or more nations.

To become smaller or more compacted.

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Astronaut

Question	Answer
Gravity	a gravitational attraction of the mass of the earth, the moon, or a planet for bodies at or near its surface.
Spine	something resembling a spinal colum or constituing a central axis or chief support.
NASA	National Aeronautics and Space Administration.
International	of, relating to, or affecting two or more nations.
Shrink	To become smaller or more compacted.