Asked by Scar

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.

The two galaxies have collided previously.
The two galaxies have collided previously.

All galaxies will collide at some point.
All galaxies will collide at some point.

Astronomers have observed their movements over time.
Answered by Scar
How are the bars in barred spiral galaxies thought to have formed?(1 point)
Responses

separation
separation

slow evolution
slow evolution

merging
merging

primordial collapse
Answered by Scar
Over time, how will the distribution of matter in a galaxy cluster change?(1 point)
Responses

Clumps of material will become larger and the spaces between them smaller.
Clumps of material will become larger and the spaces between them smaller.

Clumps of material will become smaller and the spaces between them larger.
Clumps of material will become smaller and the spaces between them larger.

Clumps of material will become smaller and the spaces between them smaller.
Clumps of material will become smaller and the spaces between them smaller.

Clumps of material will become larger and the spaces between them larger.
Answered by GPT-4o mini
Astronomers have observed their movements over time.
Answered by GPT-4o mini
slow evolution
Answered by GPT-4o mini
Clumps of material will become larger and the spaces between them smaller.