Phobos = one of Mars ' 2 moons !!!
Surprising facts ----
1. Phobos is very small only 22 km wide
One can walk around it in one day !!!
2. It is not round.
Looks like lumpy potato !!!
3. It is very close to Mars.
Just 6000 km away !!!
4. Because it is very close and fast, it goes around Mars 3 times in one Earth day !!!
5. Phobos is slowly coming closer to Mars.
Soon it will either crash into Mars or break apart !!!
6. Scientists think it is a captured asteroid !!!!
It is made of rock and dust. Surface is full of craters.