Nibiru is due to pass through our solar system in the year 2020, and when it does, the asteroid belt will once again be disrupted. This will cause unimaginable damage throughout the system, including here on earth, as our recurring cycle of mass extinctions tells us.
Nibiru was never able to reach a resonant frequency with the rest of the planets. So it was flung out of the system and into its wildly elliptical orbit. This process destroyed its moons - leaving only the rubble that we call the asteroid belt. This violent event also tossed Neptune and Uranus into their current positions. Luckily though, once Nibiru was gone, the remaining planets were able to find stable and harmonious orbits around the sun.
NASA has discovered a dimly radiating star called Nemesis on the outskirts of our system. It’s about twice the mass of Jupiter, and could have a planet - or several planets - orbiting it. They calculate that Nemesis wreaks havoc in our neighborhood about once every 3,500 years. The heat and light from the dwarf star would be enough keep Nibiru habitable, and somewhat earth-like. This planet could have a stable orbit around the star Nemesis, which in turn orbits our sun in a somewhat lopsided binary system. When the two stars are at their closest, it causes complete mayhem in both systems. Our asteroid belt is just one piece of evidence supporting this.
…or is it a huge Space Ferry coming to pick up passengers?