BriefGlo

Smoke-like plumes rising around Antarctic glaciers can look deeply mysterious. Some observers connect such imagery with UFO theories, but atmospheric science offers a very different explanation.

Mysterious multicoloured lights filmed over Tehran have revived UFO speculation almost exactly 50 years after Iran’s famous 1976 encounter. But what do the new videos actually show?

Could an unknown intelligence remain hidden beneath Earth’s oceans? From USO reports to the enormous unexplored deep sea, we examine the underwater intelligence hypothesis and the evidence behind it.

A new US defence waiver changes how certain UAP whistleblowers can provide protected information to PURSUE. It does not, however, amount to proof of extraterrestrial technology.

3I/ATLAS came from beyond our Solar System and quickly became the subject of alien-spacecraft theories. New observations are now revealing a much more detailed picture of this extraordinary interstellar visitor.

Satellite images, UFO stories and hidden landscapes have fuelled claims of an alien base beneath Antarctica. Here is what the evidence actually shows.

Operation Highjump sent thousands of U.S. Navy personnel to Antarctica in 1946–47. Decades later, it became linked to UFO battles and secret bases. What does the historical record actually show?

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.