Science Channel HD

Cutting-edge archaeological methods help experts unearth the dark secrets hidden at the seven wonders of ancient Rome.

The sacred city of Nippur and the world's only ziggurat contain elusive mysteries to the ancient Sumerian people; now, archaeologists armed with pioneering tech are on a quest to reveal the secrets behind the earliest known civilization in history.

The coliseums of Rome were brutal theaters of spectacle and death that helped control the sprawling Roman empire; now, archaeologists uncover the engineering secrets behind these majestic structures to reveal the truth behind the ancient Roman world.

The ancient city of Abydos contains some of the oldest Egyptian tombs and a buried temple linked to a mysterious death cult; now, archaeologists use cutting-edge drone imaging to investigate long-hidden secrets behind the first pharaohs.

A colossal stone temple on a remote Egyptian island mysteriously bears the names of the most famous leaders of the ancient world; now, experts use cutting-edge tech to investigate why pharaohs and emperors all built monuments at this enigmatic site.

Lost tapes show that Apollo astronauts heard unexplained transmissions on the far side of the moon; an amateur astronomer finds an odd disturbance in Martian atmosphere; an unidentified object in Earth orbit starts stalking Russian spacecraft.

Astronauts evacuate when a mystery object hurtles toward the ISS; a NASA secret agent goes undercover to retrieve missing moon rocks; scientists struggle to find answers when they discover a huge void at the edge of the solar system.

A distant planet shows an Earth-like atmosphere; a glowing light suggests an atmosphere on the Moon; why there are blueberries on Mars.

Discoveries of new planets have revealed countless worlds much stranger than Earth; some of these strange worlds don't have stars and others are made out of diamonds.

Dark matter is the biggest mystery of the cosmos; scientists know that it has been vital to our universe since its birth, and new discoveries reveal that it could create black holes, cause mass extinctions, and might even shape life on Earth itself.

New theories claim that the legendary sunken city of Atlantis actually could have been in the Americas; Rob Nelson and Stefan Burns investigate evidence that might shed more light on one of the world's greatest mysteries.

A legendary train filled with stolen Nazi gold is said to be hidden in Poland; using cutting-edge technology, Rob Nelson and Stefan Burns explore deep underneath the earth's surface and in abandoned Nazi tunnels in search of the infamous legend.

When an infamous pirate city sunk into the sea after a massive earthquake, a wealthy pirate's treasure may have disappeared with it; a hunt for the legendary lost pirate treasure of Henry Morgan.

Millions of dollars of stolen Gold Rush treasure is rumored to have been stashed in a cave in Northern California; the search for the legendary treasure.

Searching for the fabled lost Temple Treasures of Jerusalem and King Solomon's hidden mines.

A strange cave freezes in the summer and melts in the winter; a massive sand dune swallows a small child in an instant.

A massive supervolcano beneath Naples, Italy, may be on the verge of erupting again, which could have apocalyptic consequences across the planet; Rob Nelson and Stefan Burns use cutting-edge technology to investigate this disturbing new evidence.

Josh recounts a Himalayan mission to find the yeti and a filmmaker's pursuit of the dangerous elephant king; the starving crew of an Antarctic expedition makes difficult choices to survive.

Josh Gates tackles history's most chilling polar adventures, including Robert Peary and Matthew Henson's brave push to the North Pole as well as Ernest Shackleton's epic survival in Antarctic ice.

Josh Gates recounts the death-defying exploits of Edmund Hillary and Tenzing Norgay, who summit Mount Everest; two submariners plunge seven miles under the Pacific; a pilot skydives from the edge of space.

Josh Gates explores daring journeys, including the Kon-Tiki balsa raft crossing the Pacific, NASA's lunar rover making tracks on the moon and an airplane flying around the world without the use of fuel.

Josh Gates explores how club members' swashbuckling exploits inspired Hollywood; a bullwhip-cracking archaeologist may be the real-life Indiana Jones; a Nazi mountaineer's life-changing "Seven Years in Tibet" became a Brad Pitt star turn.

Josh Gates boldly explores members' most heart-pounding journeys into space; Apollo 13 astronauts fight to bring their crippled spacecraft 238,000 miles back to Earth and futuristic SpaceShipOne could give others a chance to travel to space.

Josh Gates explores daring journeys, including the Kon-Tiki balsa raft crossing the Pacific, NASA's lunar rover making tracks on the moon and an airplane flying around the world without the use of fuel.