BriefGlo

Admiral Richard E. Byrd really explored Antarctica and kept diaries. But does the famous “secret diary” prove he entered the Hollow Earth? We examine the historical record.

Agartha is often described online as a civilisation hidden beneath Antarctica. But the original story began somewhere very different.

Antarctica has become the most famous setting for modern Hollow Earth stories. From mysterious entrances to underground cities, the claims are

If scientists can search distant planets for signs of life and technology, could another civilisation do the same to Earth? Here’s what might give us away.

Radio signals are only one way scientists could detect distant technology. Technosignatures could also include lasers, unusual chemicals and other artificial traces.

What would it take to scientifically confirm an extraordinary UAP? We examine radar, sensors, physical evidence, independent verification and the standards required for a major discovery.

Could an unknown intelligence already be living on Earth? We examine cryptoterrestrial theories, UAP evidence and what would actually count as proof.

Could an industrial civilisation have existed millions of years before humanity? The Silurian Hypothesis asks what evidence such a society might leave behind.

Some UFO stories lead not into space, but beneath the ocean. We examine USOs, transmedium UAP claims, deep-sea mysteries and what the evidence actually shows.

Could an advanced civilisation remain hidden beneath the Earth? We explore underground life, geology, Hollow Earth theories and the evidence behind the idea.