perpetual motion wrote:I have no idea how they could find out about this.
Is this from another imaginative paper theory from the mainstream Mensa group.
"(Dust) particles larger than (about one 100,000th of a centimeter in diameter) form a large disk-shaped cloud that orbits the Sun between the orbits of Venus and the asteroid belt. (This cloud produces zodiacal light).Forces acting on these dust particles (called the Poynting-Robertson effect) should spiral most of them into the Sun in less than 10,000 years. Known forces and sources of replenishment cannot maintain this cloud, so the solar system is probably less than 10,000 years old)".
If this dust cloud exists now, then it must be older than 10,000 years. This dust could have been created by such events as a large number of comet tails spewing dust from one of their tails, or from such a event such as a major collision, or from plasma arc discharges such as the postulated close encounter with Mars, or the release of Saturn's plasma axial column of satellites. The solar system may be much older and some process replenished this dust. Is my thinking correct?
Dating is always problematic,