How big is the universe? If it began with the Big Bang, will it also have an end? Is there life beyond our planet? Questions like these inspired the launch of Voyager I in 1977 and have driven innovative space research and exploration ever since. Trace ground-breaking discoveries that have transformed our picture of the universe, from an age when we knew of no planets beyond our solar system, to today, when we have evidence of thousands and estimate trillions more. And follow the teams trying to solve two of the biggest mysteries in cosmology today: What are dark matter and dark energy?
Cast
Recommendations
view all
Avatar: The Deep Dive - A Special Edition of 20/20
National Geographic: Journey to the Edge of the Universe
The Matrix Recalibrated
28 Up
Halloween: 25 Years of Terror
Champs
The Captains
A Plastic Ocean
A Decade Under the Influence
Spider-Man: All Roads Lead to No Way Home
Star Wars: The Legacy Revealed
Public Speaking
Naqoyqatsi
The Skywalker Legacy
Sidney
The Class of ‘92
The Godfather Family: A Look Inside
Drew: The Man Behind the Poster
McQueen
Anna Nicole Smith: You Don't Know Me