Question

the largest structures in the universe are called superclusters. superclusters are collections of galaxy groups, and they are hundreds of millions of light - years across. the local group sits within the laniakea supercluster, which is visualized in the model below. each glowing dot represents a galaxy, and the areas of empty space between groups of galaxies are called voids. determine whether each statement describes a supercluster, a galaxy group, or both. it contains no more than 50 galaxies. it is hundreds of millions of light - years across. it is the largest structure in the universe. it contains areas of empty space.

Explanation:

1. Galaxy groups typically contain no more than 50 galaxies. Super - clusters are much larger collections of galaxy groups.
2. Super - clusters are hundreds of millions of light - years across, while galaxy groups are much smaller in scale.
3. Super - clusters are the largest structures in the universe, not galaxy groups.
4. Both super - clusters and galaxy groups can have areas of empty space (voids) between them.

Answer:

1. Galaxy group
2. Supercluster
3. Supercluster
4. Both