Sirius, also known as the Dog Star, is a binary star system consisting of two stars: Sirius A and Sirius B. Sirius A is a main-sequence star, similar to our Sun, while Sirius B is a white dwarf, a compact remnant of a star that has exhausted its nuclear fuel.
Sirius A is not expected to explode in the near future. It is estimated to have a remaining lifetime of several billion years before it exhausts its nuclear fuel and eventually evolves into a red giant. When that happens, it will expand and engulf its companion star, Sirius B. However, this event will not lead to a catastrophic explosion. Instead, it will result in the formation of a binary system with a white dwarf orbiting a red giant.
As for Sirius B, it is a white dwarf and does not have the potential to explode on its own. White dwarfs are the remnants of stars like the Sun, and their evolution involves cooling down over billions of years rather than exploding.
Therefore, there is no scientific basis to support the claim that the eventual evolution of Sirius A or the presence of Sirius B will result in any harm to Earth or cause its destruction. The evolution of stars is a natural process that takes place over vast timescales, and there is no immediate threat from the Sirius system to our planet.