Science TV Guide — Tuesday, 21 July 2026

Browse the full Science TV guide for Tuesday, 21 July 2026. 24 programmes listed , including 6 tonight. US listings updated daily — scroll down to tonight's highlights or use the day tabs above to browse the weekly schedule.

Early Morning

00:00 1h

Unexplained and Unexplored

S1 · E5 · Hunt for the Ark of the Covenant Documentary

Hunt for the Ark of the Covenant

Experts examine long-lost maps that provide new leads in the hunt for the Ark of the Covenant, leading them through the Holy Land, Egypt and Ethiopia.

01:00 1h

Unexplained and Unexplored

S1 · E6 · Mystery of the American Maya Documentary

Mystery of the American Maya

An investigation into the long-lost Maya civilization suggests that they did not suddenly vanish, but instead, they survived and settled in the United States.

02:00 1h

Unexplained and Unexplored

S1 · E8 · Finding the Fountain of Youth Documentary

Finding the Fountain of Youth

Archaeologists use hidden messages encoded in a 500-year-old map to search for the legendary Fountain of Youth in caves and perilous waters.

03:00 1h

Unexplained and Unexplored

S1 · E5 · Hunt for the Ark of the Covenant Documentary

Hunt for the Ark of the Covenant

Experts examine long-lost maps that provide new leads in the hunt for the Ark of the Covenant, leading them through the Holy Land, Egypt and Ethiopia.

04:00 1h

Unexplained and Unexplored

S1 · E7 · Egypt's Land of the Gods Documentary

Egypt's Land of the Gods

Experts use old maps to locate a lost-long civilization rumored to be filled with treasure and could be the ancestral home of the ancient Egyptians.

05:00 1h

Unearthed

S11 · E3 · Lost Tomb of Alexander the Great Science

Lost Tomb of Alexander the Great

The tomb of Alexander the Great mysteriously vanishes and becomes a legend, but investigators piece together the evidence to reveal where his tomb lies.

Morning

06:00 1h

Unexplained and Unexplored

S1 · E4 · Killing Meriwether Lewis Documentary

Killing Meriwether Lewis

Experts reveal a vast conspiracy theory involving the suspicious death of Meriwether Lewis by exploring clues that point to his death being a murder.

07:00 1h

NASA's Unexplained Files

S4 · E4 · The Earth Next Door Documentary

The Earth Next Door

Astronomers find a planet that may hold life; a secret space program is uncovered; the Apollo missions capture evidence of life necessities on the moon.

08:00 1h

NASA's Unexplained Files

S4 · E3 · A President's Close Encounter Documentary

A President's Close Encounter

NASA's probe tries to detect evidence of life; an unknown object heads towards a near-earth asteroid; a future United States president has a UFO sighting.

09:00 1h

NASA's Unexplained Files

S6 · E8 · Secrets of the Alien Signals Documentary

Secrets of the Alien Signals

Experts investigate if NASA's strange experiment to communicate with dolphins could be a prelude to making alien contact and what the consequences could be.

10:00 1h

How the Universe Works

S8 · E5 · Monsters of the Milky Way Documentary

Monsters of the Milky Way

Experts use the latest technology to explore the supermassive black hole in the center of the Milky Way and learn how it shapes life on Earth.

11:00 1h

How the Universe Works

S8 · E7 · How to Build a Planet Documentary

How to Build a Planet

Innovative telescopes take scientists back in time to witness the birth of planetary systems, the worlds inside them and planetary formations never seen before.

Daytime

12:00 1h

How the Universe Works

Earth's Death Orbit Documentary

Earth's Death Orbit

Experts reveal that Earth is heading towards a mysterious area of the cosmos that could eject the planet out of the Milky Way and into oblivion.

13:00 1h

Mummy Unexplained Files

S1 · E1 · The Screaming Mummy Conspiracy True

The Screaming Mummy Conspiracy

Experts investigate the mystery of the Screaming Mummy, a mummy with a terrifying expression frozen in agony, and new discoveries reveal a connection.

14:00 1h

Mummy Unexplained Files

S1 · E2 · Curse of the Warrior King True

Curse of the Warrior King

A team of experts in Egyptian archaeology and criminal forensics investigate fresh evidence to uncover the truth behind a mangled mummy of a pharaoh.

15:00 1h

Mummy Unexplained Files

S1 · E3 · Tut's Darkest Secret True

Tut's Darkest Secret

New discoveries made with modern-day forensics about the mutilated mummy of a young woman reveal a secret link to the pharaoh Tutankhamun.

16:00 1h

Mummy Unexplained Files

S1 · E4 · Egypt's Lost Queen True

Egypt's Lost Queen

A new discovery inside a 3,000-year-old treasure chest could lead experts to uncover an Egyptian pharaoh who was erased from history.

17:00 1h

Mummy Unexplained Files

S1 · E5 · Pharaoh of Niagara Falls True

Pharaoh of Niagara Falls

Leading scientists and Egyptologists use state-of-the-art forensics to investigate the Niagara Falls mummy and search for its true identity.

Evening

18:00 1h

Mummy Unexplained Files

S1 · E6 · To Kill a King True

To Kill a King

The mysterious mummy of Ramesses V reveals a shocking tale of bitter family infighting and civil insurrection that pushed ancient Egypt to the edge of collapse.

19:00 1h

Strange Evidence

S6 · E6 · India's Fireball Mountain True

India's Fireball Mountain

Experts investigate and uncover a possible link to lost plutonium during a Cold War spy mission that went disastrously wrong in India.

20:00 1h

Strange Evidence

UFO Over Missouri True

UFO Over Missouri

A strange cube spins through the skies over Missouri; experts investigate footage released by the Pentagon that confirms the existence of these ominous objects.

21:00 1h

Strange Evidence

S2 · E3 · Temple of Terror Documentary

Temple of Terror

An explosion reveals evidence of a temple complex; the remains of a pseudo human who ate its own kind are discovered; a mineshaft causes supernatural events.

22:00 1h

Strange Evidence

S4 · E4 · Aliens of Hell Highway Documentary

Aliens of Hell Highway

When cameras capture footage of a highway swarmed with snake-like creatures and an unexplained ooze, experts investigate the origins of these alien creatures.

23:00 1h

Strange Evidence

S4 · E1 · Underwater Godzilla Documentary

Underwater Godzilla

Experts investigate footage of a large, never-before-seen sea creature in mysterious waters near Japan, and some wonder if it could be an undiscovered monster.

Early Morning

Morning

Daytime

Evening

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