The sun's radiation pushes very small particles outward. Over millions of
years, all particles smaller than a certain size (on the order of a micron
in diameter) should have been blown out of the solar system. Yet these
microparticles are abundant around the sun.
Source:
Brown, Walt, 1995. In the Beginning: Compelling evidence for creation
and the Flood. Phoenix, AZ: Center for Scientific Creation, p. 30.
Response:
Comets bring more particles into the inner solar system regularly.