Wednesday, February 27, 2008

Mercury's Has A Long Tail

Mercury's 'tail' is longer than thought "Mercury's gravity is too weak to hold a permanent atmosphere, so when atoms are evaporated from the planet's surface by solar photons or other processes, some of the atoms form a tail that points away from the sun." It extends 1.6 million miles from Mercury. Maybe Mercury will be changed from a planet to a comet.

No comments: