Einstein's Mistake and Hubble's Revelation

When Albert Einstein developed his theory of general relativity, he thought the universe was not expanding; he believed it was static. However, his equations suggested otherwise. To make them match his idea of a static universe, he added a term called the cosmological constant, which acted like a repulsive force against gravity.

Later, in 1929, Edwin Hubble showed that the universe was expanding. This made Einstein regret adding the cosmological constant, and he called it his "biggest blunder."

Now, scientists have brought back the cosmological constant to explain a mysterious force called dark energy, showing that what Einstein once thought was a mistake might be a key to understanding the universe's behavior.

#shortvideo #einstein #theoryofrelativity #cosmological #blunder