Not really sure but mostly that are scattered in the internet that this might be. I have seen a lot regarding this nibiru and read some blogs how will this come from the nostradamus predictions. I hopefully not true.
As i know, the plates orbit around the sun... maybe it is an meteor or something but it isn't a planet... Maybe, i dont belive in this... earth will be gone when the sun stop shine
scientist may find solution for this problem too.even in past there were certain rumors from time to time that certain meteorite will hit earth and all will end there but nothing of the sort has happened till now.our scientist are too good and can deal with any problem of that sort.