Антарктида может служить базой для инопланетных посетителей Земли, но по мере того, как расширяется изучение человеком замерзшего континента, люди могут столкнуться лицом к лицу с руинами древней развитой цивилизации, скрытой подо льдом.

Спутниковые снимки выявили гигантское лицо, которое, кажется, вырезано на Земле в Альберте, Канада, которое теперь стало широко известно как «Страж Пустоши».

Печально известный "Элемент 115", упомянутый Бобом Лазаром более десяти лет назад, теперь добавлен в периодическую таблицу.

Инопланетяне из звезды Сириус В, возможно, посещали людей в далеком прошлом, передавая знания о цивилизации людям за тысячи миль друг от друга.

В океанах скрываются существа, которые не поддаются объяснению, такие как осьминоги, которые могут редактировать свою собственную ДНК, или животные, которые могут регенерировать весь их мозг; изучение того, действуют ли океаны как гигантская чашка Петри для чужеродных генетических экспериментов.

Когда испанские конкистадоры стерли исторические записи майя в 16-м веке, уничтожили ли они доказательства того, что древние люди путешествовали в Америку со всего мира - и на летательных аппаратах, предоставленных инопланетными посетителями?

Древние Друиды путешествовали в Новую Англию и Гудзонскую долину в Нью-Йорке столетия назад, неся с собой убеждения и технологии своих наставников-пришельцев, Сияющих ирландских мифов? И оставили ли они жизненно важные подсказки в виде таинственных каменных структур, все еще видимых на ландшафте?

Serpent gods are found in the traditions of Mesopotamia, Central and South America, India, China, Japan and the Bible; a look at if these stories describe a race of reptile-like extraterrestrials instead.

In 2016, scientists made the astonishing discovery that 30 percent of all protein adaptations since humans' divergence with chimpanzees have been driven by viruses. Could ancient aliens have shaped human evolution by introducing viral epidemics on Earth? And if so, for what purpose? Are they making us more like them?

Extraterrestrials could be altering human DNA and repopulating the Earth with alien/human hybrids; following the trail of evidence from ancient cultures to modern-day animal mutilations and alien abductions.

Could paranormal activity be explained by beings entering our world from other dimensions? According to some Ancient Astronaut theorists, entities that have been described as ghosts, angels, and extraterrestrials are actually visitors from unseen realms — and they are among us even now.

The native Hawaiians trace their ancestry to beings from the Pleiades star system called the Akua. Could these islands have once been inhabited by extraterrestrials? And is it possible that the enormous energy generated by Hawaii's volcanic activity could produce a portal through space and time?

Throughout the ancient world, structures were built to mirror the constellations in the night sky and this is only apparent when they are viewed from high above; a look at the possibility that these structures were designed as messages.

Ever since the first atomic bomb was detonated in 1945, UFOs have been reported at nuclear facilities all over the world. Is it possible that extraterrestrials are monitoring humanity's nuclear capabilities? But why? Does this constitute a threat? Or are they trying to ensure humankind's survival?

A mysterious mountain in northern Italy has stood witness to strange sightings in the sky and unexplainable phenomena for hundreds of years but could it be attracting extraterrestrial visitors and there could be technology within its rocky slopes.

A shocking study reveals that the original builders of Stonehenge mysteriously vanished; but Stonehenge's mysterious Bluestone circle could have activated a portal that transported the ancient culture back to their former home among the stars.

Divine substances were consumed by the gods but sometimes gifted to humans to impart great power or wisdom; could the food of the gods be sustenance for alien visitors and does it lend insight into humanity's future.

Tattoos, piercings, and body modification account for a nearly one-billion-dollar industry, but are these practices a bold form of self-expression or could they be motivated by a profound link to ancient ancestors.

In 2019, millions responded to an internet post advocating to storm the gates of the world's most top-secret military installation -- Area 51 but when they did, the U.S. military vowed to defend the base with deadly force.

Are governments around the world preparing mankind for the most startling event in human history-the official disclosure of an extraterrestrial presence on Earth? And if so, why is this happening now and what might happen in its aftermath?

Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.