The 20 greatest sci-fi shows of all time – ranked

Science fiction is a genre that engages with the challenges of life but in a way that make the viewer feel lifted up other than beaten down.

For All Mankind is at its best when it faithfully transposes the scenes from the novel set during the horrors of China ’s Cultural Revolution .

Foundation is full-on loud, camp, action-packed and outrageous but cranking things up to 11 captures the spirit of the mid-20th century .

Blake ’s 7 is BBC 's most successful sci-fi series that doesn’t have the words “Doctor” or “Who” in the title.

The Expanse chronicles the struggle for power in a future solar system where Earth competes for resources with colonies in the Asteroid Belt and on Mars .

The Mandalorian is a pulpy snap and crackle that hark back to George Lucas films.

This beautiful French -made animation is adapted from the super-violent video game League of Legends .

Pacific Rim borrows heavily from Neon Genesis but lacks the eerie majesty of a sci-fi classic.

The Duffer brothers gleefully rifle early Eighties pop culture for their Netflix blockbuster.