How can blimps be of use for scientific studies?

Three facts about the sun? How do you say blood moon in French? How much of the moon gets light from the sun at all times? How many times will the moon rotate on its axis 92 days? Colors of the madagascan flag? Is white cloud transparent? When was the first manmade satellite put into orbit? Do tornadoes change the Earth's atmosphere? Although the biographer cannot prove it she believes strongly that Hypatia invented the astrolabe? Why do hot air balloons launch early in the morning? What kind of precipitation comes from lenticular clouds? How big does a star have to be in order to form a black hole? What was the name of the first shuttle launched? Which constellations are the best seen during the month of February? Who first suggested the idea of creating the ISS has it always been called the international space station if not what ws its former name? What manned space program was developed after Apollo? When did Peary reach the South Pole? Can we make wish to moon? Was anyone in the first rocket to space? How do astronomers use constellations in the sky?