Chapter 77 Time is Urgent
Boundless Universe.
Two incomparably massive giant nebulae are swiftly approaching one another.
These two giant nebulae are none other than the Galaxy Nebula and the Andromeda Nebula; the former has a diameter reaching 160,000 light-years, while the latter is 220,000 light-years across. Despite these figures seemingly being colossal, they are no more than the size of two pizzas in the perspective of the endless Universe.
Yet from a cosmic viewpoint, one could clearly discern the features of both nebulae.
The Galaxy Nebula is a barred spiral nebula, with a luminosity at its center that is exceedingly intense, especially the massive glowing bar composed of billions of old stars - it is even more magnificent and spectacular than the Sky Tower from the novels!
The Andromeda Nebula, however, is a spiral nebula with a gigantic glowing vortex at its center, formed by the accumulation of countless old stars. In both luminosity and diameter, it far exceeds the Galaxy Nebula; after all, the Andromeda Nebula spans 220,000 light-years in diameter, with a mass roughly twice that of the Galaxy Nebula!
These two titans of the cosmos, pulled toward each other by their mutual gravitational forces, have been slowly closing in after a prolonged flight through time.
However, these two giant nebulae are not situated on the same horizontal plane. When viewed from space, the Andromeda Nebula’s position in the cosmos is a few hundred light-years lower in altitude compared to the Galaxy Nebula.
Yet, this slight difference in height is inconsequential to these two behemoths, each with a thickness exceeding 10,000 light-years. Under the influence of their powerful gravity, the Galaxy Nebula begins to move downward at a very small angle, while the Andromeda Nebula shifts upward at an equally modest angle.
Eventually, the gravitational force of the giant nebulae will pull them together, leading to a grand nebular collision.