The Comet 3I Atlas was observed to gain a acceleration of 0.0000005 meters per second per second at its closest approach to the sun. Physicist Avi Loeb cites the mechanism as carbon monoxide gas propelling the comet forward. But this is wrong since another comet called Oumuamua also had acceleration but had no gas. Cartesian physics explains that the mechanism is the density of space particles near the sun. These wrap around the comet's nucleus as surface tension which sublimates the matter on t