Expansion of the Universe

Expansion of the Universe

The universe is constantly changing. Scientists have discovered that the universe is expanding, meaning that galaxies are moving away from each other over time. This idea was first supported by the work of Edwin Hubble, who observed that distant galaxies appear to be mo...

The universe is vast and constantly expanding. But how do we know this? The answer lies in the evidence provided by Redshift.

The phenomenon of Redshift can be understood with an experiment. When starlight passes through a prism, it splits into a spectrum. Scientists studying this spectrum observed dark lines where specific colors were mis...