Question

which is one of edwin hubbles findings that supports the big bang theory? the universe started at a central point planetesimals formed in debris disks visible matter only makes up about 5% of the universe the milky way is the only galaxy in the universe

Explanation:

Edwin Hubble discovered that galaxies are moving away from each other, which implies the universe is expanding. This supports the idea that the universe started at a central point (the Big - Bang theory's initial singularity). Planetessimals forming in debris disks is related to planet - formation, the 5% visible matter fact is about the composition of the universe, and the Milky Way being the only galaxy is a false statement.

Answer:

The universe started at a central point