One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate.’
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
Salon8d
One large Milky Way galaxy or many galaxies?
Belgian cosmologist and Catholic priest Georges Lemaitre made that connection by realizing that the theory of general ... 200 million years after the big bang, when the universe was 20 times smaller ...
The Conversation28d
One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’
Belgian cosmologist and Catholic priest Georges Lemaitre made that connection by realizing that the theory ... the big bang, when the universe was 20 times smaller than it is now. Edwin Hubble ...
Space.com23d
What is the Big Bang Theory?
The Big Bang Theory explains how the universe began. The Big Bang Theory stands as the most widely accepted explanation for the origin of the universe. According to this theory, the universe began ...
ExplorersWeb on MSN2d
Great Mysteries of Outer Space: Dark Energy and the Hubble Tension
Around 13.7 billion years ago, something collapsed. It fell outward into the nothingness that stretched in every direction, ...