11.   Current theory, based on our solar system, says planets should have more or less circular orbits.

12.   First, earth-based radar showed the planet has one of the weirdest rotations in the solar system.

13.   Mars has polar ice caps and images of the Martian terrain taken by previous orbiters show signs that the planet once had plenty of water flowing on the surface.

14.   Maybe a planet has to be lucky, as well, he said.

15.   Most likely, he said, neither planet has a solid surface but is primarily a hydrogen-rich atmosphere with a highly compressed, liquid interior.

16.   Most planets have an axis of rotation that is more or less perpendicular to the plane of the solar system.

17.   My planet also has a magnetic grid overlaying it.

18.   Perhaps the planet still has some volcanic heat churning in its interior.

19.   Personally, I find it hard to believe that the planet does not have a skinny person who snores.

20.   Since the magnetosphere remains stationary while my planet spins, the planet has constantly changing magnetic fields.