Technology • Jun 12, 2025

Einstein's misconception: The expanding universe

Back in 1917, Einstein pictured the universe as calm and unchanging, even adding a "cosmological constant" to his math just to keep things steady. But astronomers soon found hints that space wasn't so still after all.

TL;DR

Hubble's discovery forces Einstein to reconsider his views

In 1929, Edwin Hubble spotted galaxies moving away from each other—clear proof that the universe is actually expanding. At first, Einstein didn't buy it, but by 1931 he admitted the evidence was too strong to ignore. This shift totally changed how we see our place in the cosmos and made Einstein drop his old idea of a static universe for good.