Steve, I remain an healthy skeptic about Nibiru. Pls note that by his books Mr. Sitchin has made a lot of money (millions of copies = millions of dollars multiplied the author's share). This means that, in lack of substantiated evidence by the scientific community or any other unbiased community, he might have just had a prodigious fantasy, and reaped the fruit of his imagination.
Astronomical and scientific observations[edit]
Sitchin's "planetary collision" hypothesis does superficially resemble one suggested by modern astronomers—the giant impact hypothesis of the Moon's formation about 4.5 billion years ago by a body impacting with the newly formed Earth. However, Sitchin's proposed series of rogue planetary collisions differ in both details and timing. As with Immanuel Velikovsky's earlier Worlds in Collision thesis, Sitchin states that he has found evidence of ancient human knowledge of rogue celestial motions in a variety of mythological accounts. In Velikovsky's case, these interplanetary collisions were supposed to have taken place within the span of human existence, whereas for Sitchin these occurred during the early stages of planetary formation, but entered the mythological account passed down via the alien race which purportedly evolved on Nibiru after these encounters.
According to former Immanuel Velikovsky assistant turned prolific critic,[28] C. Leroy Ellenberger,[28] "[Sitchin states that] from an equal start, the Nephilim evolved on Nibiru 45 million years ahead of comparable development on Earth with its decidedly more favorable environment. Such an outcome is unlikely, to say the least, since Nibiru would spend over 99% of its time beyond Pluto. Sitchin's explanation that heat from radioactive decay and a thick atmosphere keep Nibiru warm is absurd and does not address the problem of darkness in deep space. Also unexplained is how the Nephilim, who evolved long after Nibiru arrived, knew what happened when Nibiru first entered the solar system."[29]
The scenario outlined by Sitchin, with Nibiru returning to the inner solar system regularly every 3,600 years,
... implies an orbit with a semi-major axis of 235 astronomical units, extending from the asteroid belt to twelve times farther beyond the sun than Pluto. Elementary perturbation theory indicates that, under the most favorable circumstances of avoiding close encounters with other planets, no body with such an eccentric orbit would keep the same period for two consecutive passages. Within twelve orbits the object would be either ejected or converted to a short period object. Thus, the failed search for a trans-Plutonian planet by T.C. Van Flandern, of the U.S. Naval Observatory, which Sitchin uses to bolster his thesis, is no support at all.[29]
Sitchin in "the case of Adam’s alien genes"[30] states that 223 genes found by the Human Genome Sequencing Consortium are without the required predecessors on the genomic evolutionary tree. Later researchers have argued that the conclusion from the Human Genome Sequencing Consortium cannot be drawn due to a lack of a comprehensive gene database for comparison. An analysis by Salzberg identified 40 potential genes laterally transferred into the genome from prokaryotic organisms. Salzberg also argues that gene loss combined with sample size effects and evolutionary rate variation provide an alternative, more biologically plausible explanation.[31]
