The Real Threat: A Rogue Planet
Unlike Planet Nine, a rogue planet could be very dangerous. These are planets that drift through space without orbiting a star. Some may have been kicked out of other systems, while others never formed around stars at all. Scientists estimate there could be billions of rogue planets in our galaxy alone.
If a planet the size of Jupiter entered our Solar System and came even a few million kilometers from Earth, the effects would be catastrophic. The new planet’s gravity could tear at Earth’s crust, disrupt the atmosphere, and cause floods, eruptions, and quakes. Life would not survive.
