
Astronomers have discovered bizarre planets very different to Earth out in the galaxy, but will we ever locate a planet similar to our own?
Next Up
Discovery
Tomorrow
8th December
11pm
Astronomers have discovered bizarre planets very different to Earth out in the galaxy, but will we ever locate a planet similar to our own?

Episode 1
New research is beginning to reveal an invisible scaffold of dark matter known as the Cosmic Web, an intergalactic network that transformed the universe.

Episode 2
Cosmic rays that damage human DNA are a serious risk in manned space exploration. Can physicists find the source of the rays and help reduce the danger?

Episode 3
Earth's past is marked by one cosmic disaster after another, forging the path of human evolution. Experts explore how close the Earth has come to destruction.

Episode 4
Experts explore the most astonishing discoveries of the Voyager spacecraft. They examine how the operation has transformed into the ultimate mission.

Episode 5
With more than 80 moons, Saturn is a dynamic planetary system. Experts explore how these satellites could rewrite the rules of the cosmos.

Episode 6
The mysterious dark matter is thought to be the cosmic glue that holds the universe together, yet the search for it continues to puzzle scientists.

Episode 7
Conflicting results make determining the age of the universe difficult. Finding the answer could be the key to many mysteries of the cosmos.

Episode 8
A team of robot sleuths roaming Mars on a mission to uncover its secrets. Now, Perseverance joins them to find out if there was ever life on the red planet.

Episode 9
Experts uncover where a black hole's energy originates. They examine what happens when the two most powerful objects in the cosmos collide.

Episode 10
A fictional asteroid hurtles towards earth. Expert scientists follow the story, asking what will happen next - and what will we do about it?

Episode 11
New discoveries have rewritten the history of our solar system. They reveal a complex and violent story, from the birth of the sun to its eventual fate.