* Rigel is a massive star: Rigel is a blue supergiant star, many times larger than our Sun. It would be impossible for something that size to travel through the relatively small space of Earth.
* Stars are incredibly far away: Rigel is located about 860 light-years from Earth. That's an unimaginable distance, and there's no known way for a star to travel that distance, let alone through a planet.
* Stars are held in place by gravity: Stars are gravitationally bound to their galaxies. Rigel is part of the Orion constellation, and it's held in place by the gravity of the Milky Way galaxy.
If Rigel *did* somehow travel to Earth, the consequences would be catastrophic:
* Immense heat and radiation: Rigel is incredibly hot and emits massive amounts of radiation. This would incinerate the Earth and everything on it.
* Gravitational disruption: Rigel's immense gravity would pull the Earth apart, causing massive earthquakes and volcanic eruptions.
In short, Rigel traveling to Earth is a purely hypothetical and impossible scenario.
