Does the Hubble Constant Change over Time?

Could the Hubble Constant change over time? And, might that explain one of the greatest problems in Cosmology?

A type Ia supernova (bottom left), erupting from the star 1994D, within the galaxy NGC 4526. Image credit: NASA/ESA

In 1929, knowledge of galaxies beyond the Milky Way was a new discovery. Ideas of families of stars beyond our own had only been confirmed five years previously. That year, astronomer Edwin Hubble noticed something unusual while examining these distant stellar clouds. Not only were…

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