The question came to mind after watching this video: http://www.youtube.com/watch?v=MTY1Kje0yLg
If the Earth and Moon can bend space-time, and if the Earth's gravity is strong enough to reach the Moon, then if an astronaut or any object is floating in space somewhere near the Earth at zero speed, should it get attracted to the Earth and eventually burn up in the Earth's atmosphere?
Similar to how the small spheres in the video roll down to the larger object? Could this be why space is so empty? Because even far-away objects that were not in motion were sucked into the Sun or some other planet because of gravity? Obviously then, the asteroids orbit the Sun.