Two of my students are floating in space, so far from any star that we'll assume that none of them exert any gravitational pull on the students.

Don't ask me how they're surviving up there - that's not my problem - I'm just the Physics teacher.

The two students start out one meter away from each other, and have no velocity relative to one another.

The mass of the first student is 80 kg, and the mass of the second is 65 kg.

How many days will it be before they collide?