Planet X - Fact and Fiction

Astronomers detect '10th planet' - UB313
BBC - July 30, 2005
The planet has been named Xena.

Sedna Is it Planet X?

Astronomer, Clyde Tombaugh, who discovered

Pluto, was searching for 'Planet X'.

Nibiru
Metaphoric version of Planet 'X' linked to the research
of Zecharia Sitchen and Sumerian Mythology