With all the progress toward putting a human on Mars, I was wondering: What is the North Star for someone on Mars?
Ralph Winrich
Dunkirk, Wisconsin
On Earth, the North Star is defined as the star toward which Earth’s north rotational pole points. Currently, that star is 2nd-magnitude Polaris, located in Ursa Minor — although it’s worth noting that Earth’s north rotational pole, also called the North Celestial Pole, doesn’t point exactly to this star. Rather,