I am not a science guy, So I have couple of questions
I want to know what happens to a spacecraft whose mission is to flyby a planet E.G. Mariner 4
Also Viking 1 (lander mission) is it still on mars? are they still operating it from earth?
How do they operate, are there already defined algorithms by which robot automatically do research or we do it from there?
After getting into the space, it does not need to be propelled by engine, right?, but in between if have to change its direction, how can we do that.
Changing direction of a spaceship won't work like Air-plane does!
While sending a spacecraft into the space is it better to send it perpendicular to the earth surface(I think the time of resistance should be less).
Okay last one, have we ever sent some spaceship in to the SUN or near sun(how close man-made spaceship can go to the sun), flyby mission can flyby and go in to the sun.
And I also want to know if a spacecraft start revolving on its own axis, can astronauts stop its revolution?