What is SD3R?

Who is the daughter of aether and hemera what moon is it? The Sun emits its most intense radiation as? Why was the skyhawk important? What type of natural phenonenom is explained in Ceres Proserpina? What is payloads in term of spacecraft? What is the purpose of a lamp in a microscope? Why is it Possible to span only narrow space with stone? When was Down to the Moon created? What is the gujarati meaning of Mercury? What will happen if only oxygen was in the atmosphere? What type of star is Elnath? What is the phase of the moon you can't see? The first satellite was launched by which country and when? Who is better Luna carpet or empire carpet? What is bigger the sun or the moon? Why do the sun shine bright? What month is pegasus visible? How many supernovas exploded to create the earth? What must overcome by a rocket's thrust? What type of cloud that is somewhat flat and layered is called?