Planet X Nibiru August 2015 Crucial Period Sept 2015 to March 2016. Brooks Agnew tells us of evidence that we seeing the affects of another gravitational influence in our solar system. Possibly a large hidden planet, he goes on to give us his opinion on Planet X and Nibiru. Brooks says the crucial time for Planet X is September 2015 to March 2016 and if it is real it might be too late by the time we see it.