answersLogoWhite

0

There's no special reason. That's just how things have turned out.

Some scientists think they may just be "captured" asteroids, but this is not certain.

Also, the orbit of Phobos, the moon closest to Mars, is unstable and Phobos

should break up and crash into Mars in 50 million years or so.

User Avatar

Wiki User

12y ago

What else can I help you with?