the local group sits within the laniakea supercluster, which is visualized in the model below. each glowing…
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.
Answer
Brief Explanations:
- Galaxy groups typically contain up to a few dozen to around 50 galaxies. Super - clusters contain many more. So, "It contains no more than 50 galaxies." describes a galaxy group.
- Super - clusters are vast, spanning hundreds of millions of light - years across. Galaxy groups are much smaller in scale. So, "It is hundreds of millions of light - years across." describes a supercluster.
- Super - clusters are large, but they are not the largest structures in the universe. Filaments and voids form even larger structures. However, compared to galaxy groups, super - clusters are much larger. So, "It is the largest structure in the universe." does not accurately describe either precisely, but is more associated with super - clusters in terms of scale among the two.
- Both super - clusters and galaxy groups contain areas of empty space (voids). So, "It contains areas of empty space." describes both.
Answer:
- Galaxy group
- Supercluster
- Supercluster
- Both