unpiloted aircrafts can not generally react as well to unexpected events as opposed to piloted aircrafts.
St.Louis
Bartolomeu Dias
She went to Africa in 1893 and 1894.
INDIA Portugal?
Trade routes were established and relationships were formed.
the Louisiana purchase is different from space explorations because Lewis and Clark had to find something - I guess. And space travel is traveling into space.
pros: We can learn lots of things by sending crews and space probes. For without space probes how would we be able to tell the weather. cons: Many humans can die in space if there is a problem with the space craft and billions of dollars will be wasted.
Curiosity
false
Making spacecraft,space shuttle and artificial satellites
problems of astronaut encounter in space explorations
Space probes are not piloted. Probes are launched to places that are months or years away in travel time. A pilot would require too much food, air, and water.
It cost about 35 billion dollars to explore space.
Launching space explorations. Most notably putting the first man on the moon.
So far, no explorations have been made on Jupiter. Not even the most sophisticated space programs in the world are able to make that kind of voyage at this time.
Underground excavations, space explorations, and other dangerous tasks.
In the United States, the National Aeronautics and Space Administration (NASA) is involved with space exploration.