There is a great deal of information in both Zetatalk and Troubled Times regarding the passage of the 12th Planet. It is indeed the fabled “Nibiru” described in ancient texts, and the same planet described by both Sitchin and Velikovsky. Try the links below for further information.
Rogue Planet TEAM
Rogue Planet TOPIC
Rogue Sighting TOPIC
Sitchin & Velikovsky TOPIC
2003 Pointers TOPICZetaTalk: Sitchin
ZetaTalk: Velikovsky