Discovery Science

TV GUIDE
Quick jump Tonight's highlights

Browse the full Discovery Science TV guide for Tuesday, 20 October 2026. 29 programmes listed , including 9 tonight. UK listings updated daily — scroll down to tonight's highlights or use the day tabs above to browse the weekly schedule.

Early Morning

  1. 00:00 1h

    Killers of the Cosmos

    S1 · E4 · Little Green Men
    Experts investigate extra-terrestrial beings and their threat to human life
    Aliens could be lethal killers who want to invade and plunder our world. A team of experts investigate extra-terrestrial beings and their threat to human life.
  2. 01:00 1h

    How the Universe Works

    S5 · E4 · Life & Death on the Red Planet
    The possibility of life on Mars in previous eras
    Once there was life on Mars - but scientists believe a series of devastating mass extinctions transformed a watery planet into a desert
  3. 02:00 1h

    How the Universe Works

    S5 · E5 · Stars That Kill
    Nasa's top six most destructive stars
    Nasa research is used to compile a list of the top six most destructive stars, including 'vampires' that drain their neighbours, supernovas, and white dwarfs that destroy planets
  4. 03:00 1h

    How the Universe Works

    S5 · E6 · Secret History of Pluto
    Scientists investigate whether there might be warm liquid water on Pluto
    Despite Pluto's appearance as a dark and frozen world, scientists investigate whether there might be warm liquid water beneath the surface
  5. 04:00 1h

    Codes and Conspiracies

    S2 · E6 · Experimental Soldiers
    Exploring the idea of 'supersoldiers'
    Looking at the USA's idea of 'supersoldiers' at the height of the cold war - a generation of soldiers who would be able use telepathy to win battles
  6. 05:00 1h

    Blowing Up History

    S4 · E1 · Mysteries in the Alien Desert
    Exploring the history behind the Nazca Lines
    Exploring the history behind the Nazca Lines, mysterious symbols that were carved into the Atacama Desert more than a thousand years ago

Morning

  1. 06:00 30m

    Teleshopping

    Home shopping
    Buying goods from the comfort of home
  2. 06:30 30m

    Teleshopping

    Home shopping
    Buying goods from the comfort of home
  3. 07:00 30m

    Teleshopping

    Home shopping
    Buying goods from the comfort of home
  4. 07:30 30m

    Teleshopping

    Home shopping
    Buying goods from the comfort of home
  5. 08:00 30m

    How It's Made

    S24 · E8 · Mosquito Coils/Solar Assist Tricycles/Palm Oil/Fibreglass Chopper Guns
    How mosquito coils are made
    How mosquito coils, solar-assist tricycles, palm oil, and fibreglass chopper guns are made, and how manufacturing techniques have been improved over the years
  6. 08:30 1h 30m

    Above and Beyond: Nasa's Journey to Tomorrow

    A programme celebrating NASA's 60th anniversary
    A programme celebrating NASA's 60th anniversary and the remarkable, historic institution that went to the Moon, the surface of Mars, and to the outer edge of the solar system
  7. 10:00 1h

    How the Universe Works

    S5 · E2 · The Universe's Deadliest
    The dangers of exploding stars, colliding galaxies and nebula shockwaves
    The astronomical documentary continues, exploring the most violent and dangerous places in the universe, including exploding stars, colliding galaxies and nebula shockwaves
  8. 11:00 1h

    Alaska Mega Machines

    S1 · E6 · Behemoths of the Bush
    The diversity of Alaska's airfields
    An insight into how Alaska's airfields range from an airport made from nothing but water and ice, to a military instalment on stand-by to avert nuclear disaster

Daytime

  1. 12:00 1h

    The Dino Hunters

    S1 · E1 · Dinosaur Cowboys
    In Wyoming, Mike and his son uncover a triceratops horn
    Montana rancher Clayton finds what might be a rare and valuable fossil on his family's property. In Wyoming, Mike and his son uncover a triceratops horn
  2. 13:00 1h

    Blowing Up History

    S4 · E13 · Hitler's Lost Bunker
    Experts uncover new evidence of the underground bunker of Adolf Hitler
    The underground bunker of Adolf Hitler is home to some of the greatest secrets of the Nazi regime. Experts use cutting-edge technology to uncover new evidence
  3. 14:00 1h

    Blowing Up History

    S4 · E14 · Leaning Tower of Pisa: The New Mystery
    The reason behind the tilt in one of the world's most iconic buildings
    The Leaning Tower of Pisa is one of the world's most iconic buildings. Here investigators uncover the reasons for its tilt
  4. 15:00 1h

    How the Universe Works

    S5 · E7 · The Dark Matter Enigma
    The science of dark matter
    The documentary series investigates dark matter, a mystery that continues to elude scientists today, and one that could be behind the formation of supermassive black holes
  5. 16:00 1h

    How the Universe Works

    S5 · E8 · Strangest Alien Worlds
    Exploring whether a planet similar to our own will ever be found
    Astronomers have discovered bizarre planets very different to Earth out in the galaxy, but will a planet similar to our own will ever be found
  6. 17:00 1h

    Alien Highway

    S1 · E1 · Missouri Mayhem
    Chuck Zukowski searches for definitive proof of extraterrestrial life
    Chuck Zukowski searches for definitive proof of extraterrestrial life. In the first episode, he investigates a series of UFOs sightings in Missouri

Tonight's Highlights

  1. 18:00 30m

    How It's Made: Dream Cars

    S3 · E9 · Jaguar XF
    The crew visits the birthplace of the Jaguar XF
    The crew visits the birthplace of the Jaguar XF and explores its exterior
  2. 18:30 30m

    How It's Made: Dream Cars

    S3 · E10 · BMW M6
    The crew visits the birthplace of the BMW M6
    The crew visits the birthplace of the BMW M6 and explores its exterior
  3. 19:00 30m

    How It's Made: Dream Cars

    S3 · E11 · Rolls-Royce Dawn
    The Rolls-Royce Dawn
    The crew goes to its birthplace, revealing the inner workings and stunning exterior of the Rolls-Royce Dawn, regarded by many as a dream car
  4. 19:30 30m

    How Do They Do It?

    S11 · E1 · Parmesan Cheese/Airport Runways/Reclining Chairs
    A look at how to make Parmesan cheese
    A look at how to make Parmesan cheese, and the key to keeping the runways operating at the world's busiest airports. Plus, manufacturing reclining chairs
  5. 20:00 30m

    How Do They Do It?

    S11 · E2 · Turkish Carpet/Cross Country Skis/Niagara Falls
    A look at ways to weave an authentic Turkish carpet
    A look at ways to weave an authentic Turkish carpet, and how helicopter blade technology is being used to make cross country skis. Plus, the practicalities behind the Niagara Falls
  6. 20:30 30m

    How Do They Do It?

    S11 · E4 · Venice Street Lamps/Ship Safety/Penjing
    Examining how the street lamps of Venice are cast
    Examining how the street lamps of Venice are cast, and how tiny trees are grown for the ancient Chinese art of penjing
  7. 21:00 1h

    Incredible Engineering Blunders: Fixed

    S1 · E3
    Justin learns the truth about a landslide in Turkey
    Justin Cunningham uncovers the truth behind a landslide that destroyed a ski-jump resort in Turkey, then heads to Gibraltar to see an airport runway that was built across a road
  8. 22:00 1h

    Incredible Engineering Blunders: Fixed

    S1 · E4
    Looking at the science behind a skyscraper melting a car
    Justin Cunningham heads to the Walkie Talkie building in London to learn more about the science behind a skyscraper melting a car
  9. 23:00 1h

    You Have Been Warned

    Overachievers
    Clips of using another person as a snowboard
    The smartest and bravest people use science to take their skills to the next level, from opening a bottle using a feather to using another person as a snowboard

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