In the majority view, within the field of astronomy, the Andromeda Galaxy is on a collision course with our Milky Way Galaxy.
This won’t happen for another 4 billion+ years, by which time our Sun, will have become a Red Giant, into which the Earth will have either have fallen into the Giant Sun, through gravitational forces – or instead, all of the oceans will have boiled off and all life on our planet will have been baked off, like so many bacteria under a flame.
That’s a long time from now.
This animation shows this astronomically-imminent collision between the Milky Way and Andromeda Galaxies, and then their subsequent amalgamation into each other, as a new galaxy.
Sound far-fetched?
It’s already happened to our Earth.
Roughly 2 billion years ago, our Earth and Solar system were similarly grabbed from our original galaxy and snatched by the Milky Way.
The Earth lived to tell the tale.
Our Earth and Solar System were not formed in the much newer, hotter Milky Way Galaxy, of which our Solar System orbits now around the Galactic Center, in a see-saw motion, which betrays a lack of stability, from its new-ish orbit.
Cosmologists tend to agree that our Earth was formed in an older galaxy that was cannibalized by the Milky Way, from an older structure called the Sagittarius Dwarf Galaxy.
Recently-discovered remnants of the Earth’s original home in the Sagittarius Dwarf Galaxy, which still surrounds us in its decayed, non-luminous state, have been discovered through Infra-Red Telescopes.
The Sagittarius Dwarf is an elderly galaxy, which has almost been entirely subsumed within the Milky Way.
And so it goes…
Add comment