Horizon - Season 53 - Eps 3: The Mystery of Dark Energy
Examining Dark Energy, the mysterious force that is unexpectedly causing the universe's expansion to speed up. Its effects were discovered in 1998, but physicists still do not know what it is, and its very existence calls into question Albert Einstein's General Theory of Relativity; the cornerstone of modern physics. The hunt for the identity of Dark Energy is on, and although experiments conducted on earth and in space generate data that might provide a clue, physics is hoping another Einstein might emerge and write a new theory that explains the mystery.
About Horizon

Title: Horizon
First Air Date: 1964-02-04
Last Air Date: 2024-07-22
Status: Returning Series
Rating: 7.379/10 (from 33 votes)
Language: EN
Seasons: 61
Total Episodes: 1169
Network: BBC Two
Genres: Documentary
Production Companies: Unknown
Synopsis
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.