>>11795999it doesn't matter, get into the best research school that you can. your first year you will just be taking all the intro math, physics, and CS classes.
>who eventually wants to participate in the colonization of mars?you are not going to be a mars colonist, sorry to break it to you. If you really want to be an astronaut, commission in the Navy/AF through a service academy or ROTC and make it to flight school.
If you want to work straight out of college, major in either MechE or EECS. A Math degree is workable too if you take some CS classes/self study data structures.
If you think you want to do a PhD, consider math or physics. You should NOT major in physics unless you plan on graduate school. A standalone math BA is perfectly workable, physics majors have much more trouble.
To give you more detailed advice you will need to give us more info. One last note, double majors are a huge meme, you should never do one. They offer no advantage whatsoever for graduate school or employment. Pick one major, then take the classes that you like from the other. You are generally better off picking the more theoretical major and then taking some random engineering classes.
t. mathfag