How does gravity keep the Moon in orbit around Earth?

Theres no oxygen in outer space and theres no modernity. So the gravity is the oxygen and air for outer space.

Gravity is what holds the planets in orbit around the sun and what keeps the moon in orbit around Earth. The gravitational pull of the moon pulls the seas towards it, causing the ocean tides. Gravity creates stars and planets by pulling together the material from which they are made.

Explanation: Google-