Read the following passage to examine each inference given against below Questions in the context of this passage.
Mark your answer as:

1)If the inference is 'definitely true'
2)If the 'data provided is inadequate'
3)If the inference is 'probably true'
4)If the inference is 'definitely false'

The space exploration has been done mainly by using unmanned satellites called spaceprobes containing a large variety of latest scientific instruments on board. These space probes have provided us the close-up pictures and other data about planets and other bodies in the outer space. The climax of the intensive American space programme came when Neil Armstrong became the first man to set foot on the moon on July 20, 1969. Originally, the artificial satellites were launched for studying the upper atmosphere of the earth.