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the; the an; the an; / /; /
to show that both are of the same and immediate value. to encourage the American people to venture into space. to display the same spirit of discovery in space exploration. to stress that a Mars mission lacks sound and solid basis.
long before man had dreamed of it long before there were human beings in the last few hundred years after the space age began
the; / /; the the; the / ; /
could not make any remarkable discovery. could only analyze the rocks there in detail. could not find the mysteries of life in solar system. could well understand the operation of the whole solar system.
inaccuracies in measurement could cause accidents in space missions the speeds of space vehicles will vary accuracy in speed measurement is essential to spaceships a bump could affect the preciseness of the laser-doppler radar
accuracy in speed measurement is essential to spaceships the speeds of space vehicles will vary inaccuracies in measurement could cause accidents in space missions a bump could affect the preciseness of the laser-doppler radar
Rendezvous in Space Landing at a Space Station New Radar for the Space Age Space Navigation
to show unmanned science will be much affected by manned space travel. to demonstrate the reprogramming of NASA’s budget into Mars effort is affordable. to display accomplishments will be made by automated probes. to stress space exploration is and will always be America’s first priority.
could not make any remarkable discovery. could only analyze the rocks there in detail. could not find the mysteries of life in solar system. could well understand the operation of the whole solar system.
to show unmanned science will be much affected by manned space travel. to demonstrate the reprogramming of NASA’s budget into Mars effort is affordable. to display accomplishments will be made by automated probes. to stress space exploration is and will always be America’s first priority.
he had to fly he could fly can he fly could he fly
long before man had dreamed of it long before there were human beings in the last few hundred years after the space age began
The Earth will get extremely hot. The balance between the amount of heat absorbed from the Sun and the amount lost could hardly be maintained, The light of the Sun could no longer reach the surface of the Earth. Infrared radiation could no longer be transmitted from the Earth to outer space.
accuracy in speed measurement is essential to spaceships the speeds of space vehicles will vary inaccuracies in measurement could cause accidents in space missions a bump could affect the preciseness of the laser-doppler radar
accuracy ill speed measurement is essential to spaceships the speeds of space vehicles will vary inaccuracies in measurement could cause accidents in space missions a bump could affect the preciseness of the laser-doppler radar
accuracy ill speed measurement is essential to spaceships the speeds of space vehicles will vary inaccuracies in measurement could cause accidents in space missions a bump could affect the preciseness of the laser-doppler radar
accuracy in speed measurement is essential to spaceships the speeds of space vehicles will vary inaccuracies in measurement could cause accidents in space missions a bump could affect the preciseness of the laser-doppler radar
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