How many space shuttle missions were launched?

What is saturns atmosphere composed of? What dose NASA stand for? What is the significance of rms noise in the measurement of signal quality? Chuck berrys recording of johhny b goode was included on the golden record launched aboard the voyager spacecraft? What type of evidence do you think would be the most difficult to interpret why? Is the sun part of nature? Did Michael Collins have kids? What part of the atmosphere do helicopters fly in? What is the time period in the book Number The Stars? What is the brightest star in constellation taurus? Everest is closer to sun compared to land at sea level Then why do the ice on Everest does not melt? In which layer of atmosphere temperature decreases with increasing altitude? What would happen if you dropped a hammer and a feather here on earth? What will happen when Betelgeuse explodes? Why is a star said to be dead when it is a white dwarf? How did Artemis come into existence? What The Sun provides light energy to the Earth via? How do meteorologists predict when a tornado will occur? If someone lived on the moon how long could they survive on it? What is the difference between hades and satan?