Astronomers know about the future collision of Andromeda and the Milky Way because astronomers have observed their movements over time. By tracking the positions and velocities of both galaxies, they can predict their future interactions and eventual collision.
How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point)
Responses
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.
All galaxies will collide at some point.
The two galaxies have collided previously.
The two galaxies have collided previously.
Astronomers have observed their movements over time.
1 answer