Question

1. which scientist discovered that there are other galaxies besides the milky way in the universe?

albert einstein
edwin hubble
stephen hawking
annie jump cannon

Explanation:

Edwin Hubble used the Mount Wilson Observatory's 100 - inch Hooker telescope to prove that the Andromeda Nebula was actually a separate galaxy outside of the Milky Way in the 1920s. His work revolutionized our understanding of the universe's scale. Einstein is known for relativity, Hawking for black - hole theory and cosmology, and Annie Jump Cannon for stellar classification.

Answer:

B. Edwin Hubble