TV Guide Science Friday

Archaeologists unearth the lost community of Quindaro, a forgotten abolitionist town; they search for artifacts of Freedom Seekers in a hidden cave in Illinois.

Archaeologists uncover remains of a Maroon community that lived in a forgotten Virginia swamp; lost artifacts are revealed at Harriet Tubman's childhood home.

Maritime routes of the railroad are traced as an underwater archaeologist searches for the wreck of a Civil War ship used by enslaved people to find freedom.

Archaeologists help solve the mystery of what happened to a little-known free fort in Florida, while thermal drones reveal Texas caves used by freedom seekers.

Experts investigate a Seoul amusement park once intended to be a paradise for K-Pop fanatics but has now fallen to ruin due to financial difficulties.

Experts investigate what was formerly the toughest prison in the United States, an enormous complex that hosted medical experiments.

Experts discuss a mysterious expedition that Neil Armstrong led into the Amazon to find a legendary library that holds all knowledge of an ancient civilization.

Two astronauts who are stuck in the vacuum of space accept their deaths; the first detailed images of Pluto show an alien landscape.

A scientist believes a mysterious material is impairing the Apollo missions; the Rosetta spacecraft encounters a comet appears to sing.

Gravitational waves help scientists explore the cosmos in revolutionary, new ways and the discoveries they make are revealing the universe's greatest mysteries.

New discoveries have rewritten the history of the solar system, revealing a complex and violent story that begins with the birth of the Sun.

The story of Johann Reichhart, who went from German state executioner prior to war, to leading the Nazi killing machine, only to wind up working for the Allies.

An examination of the secret documents and artifacts of the Vatican Archives and Library, containing such treasures as the trial transcripts of Galileo.

The story of the Bulgarian secret department, Service 7, the killer force that had operations in nine different countries, resulting in many unexplored deaths.

A profile that attempts to challenge head-on the orthodox beliefs about an order that created much anger in Europe and France, in particular.

A profile of one of the major figures in Christianity, who was said to have travelled with Jesus and been present at his crucifixion and resurrection.

The once-powerful friend of Hitler saw his days end by hanging upside down in Milan's Piazzale Loreto, but mystery still surrounds the details of his death.

Experts investigate and uncover the relics of a declining ancient civilization on the island of Sardinia that may have suffered a celestial catastrophe.

Experts investigate and discover a network of massive satellites linked to a hidden NATO doomsday communications bunker on the Greek island of Kefalonia.

Experts investigate and uncover a hidden tunnel containing the remains of an abandoned slate mine with an exploitative and deadly past.

Experts investigate and uncover an ancient site in Ireland that is linked to legendary figures and the elusive hunt for the Ark of the Covenant.

Experts investigate and uncover a massive hangar in Kazakhstan containing the most expensive spacecraft in the history of Soviet era space exploration.

Experts investigate and uncover a massive WWII military complex in Poland that was once used as a notorious and deadly Nazi weapons training facility.

Experts investigate and uncover an ancient site in Ireland that is linked to legendary figures and the elusive hunt for the Ark of the Covenant.

Experts investigate and uncover a massive hangar in Kazakhstan containing the most expensive spacecraft in the history of Soviet era space exploration.

Experts investigate and uncover a massive WWII military complex in Poland that was once used as a notorious and deadly Nazi weapons training facility.

Experts investigate and uncover a hidden tunnel containing the remains of an abandoned slate mine with an exploitative and deadly past.

A profile of one of the major figures in Christianity, who was said to have travelled with Jesus and been present at his crucifixion and resurrection.

The once-powerful friend of Hitler saw his days end by hanging upside down in Milan's Piazzale Loreto, but mystery still surrounds the details of his death.