Could the entire universe be smaller than we once assumed?

New research suggests the cosmos might be finite rather than infinite. This video examines evidence from the cosmic microwave background radiation that challenges standard cosmological models and hints at a closed universe.

The cosmic microwave background radiation acts as a relic of the early universe, carrying thermal signatures from the Big Bang. While invisible to the naked eye, this radiation is detectable via radio antennas and serves as a primary data source for understanding the structure of space.

A recent study published in Nature Astronomy by Eleonora Di Valentino, Alessandro Melchiorri, and Joe Silk analyzes this radiation to suggest that the universe may be closed. If confirmed, this finding would represent a significant shift in our comprehension of cosmic scale, potentially indicating that the universe is finite in size.

Source: Is The Universe Finite?