A.) Launch a satellite
Landing on the moon takes years to figure out. (How, when, what is the purpose, etc.) Capturing an asteroid is beyond difficult and would also take years to figure out how to do so.
Launching a space probe has yet to be done BUT we have had a satellite launched (hence how we get satellite images.)
The first law. Planets orbit is an ellipse with the Sun at one focus.
The path electrons take to orbit the nucleus is called shell.
D) TATCCG. The complementary code for "A" is always "T" and for "G" it is "C"