Phobos (one of Mars' moons) has the following dimensions: 27 × 22 × 18 km. It has low mass, and little or no gravity/atmosphere.
Let's just assume that it's possible to walk around on Phobos without dying or getting hurt. With it being so small, you should be able to just walk to one of the edges of Phobos.
This brings me to my first questions: Since there is so little gravity/atmosphere and it is so small, would you be able to "fall off" Phobos ?
This concept is hard for me to grasp because on earth, its hard to imagine to "fall off" the earth, because you're never physically on an edge (since the earth is round). Phobos however doesn't seem to have a smooth round shape (and is alot smaller).
Question number two: When you're standing on of the edges of phobos, would you be able to "stare down" into the empty vacuum of space?
I compare this in my head with standing on the edge of a chair or table, looking down to the floor. Only in this case, you're staring straight down into space. Does this comparison make sense, or am I looking at this the wrong way?