Responses
Astronomers have observed their movements over time.
Astronomers have observed their movements over time.
The two galaxies have collided previously.
The two galaxies have collided previously.
The Milky Way has changed course to head toward Andromeda.
The Milky Way has changed course to head toward Andromeda.
All galaxies will collide at some point.
1 answer
The correct response is: Astronomers have observed their movements over time.
Astronomers use various observational data, such as redshift measurements and proper motion, to track the velocities and trajectories of galaxies over time, allowing them to predict future interactions, including the eventual collision of the Milky Way with the Andromeda Galaxy.
