28/09/2026
What if the universe wasn’t always the enormous place we see today? 🌌
In the 1920s, Georges Lemaître proposed a revolutionary idea: the universe could be expanding. If you reverse that expansion, the universe would once have been incredibly hot and dense.
Lemaître called this idea the **“primeval atom.”** His work became an important foundation for the modern Big Bang model.
The story of the man who helped change how humanity understands the universe. 🌌🔭