The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn more.

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

It's World UFO Day, but questions about aliens, UFOs and what governments know about them remain. UFO researcher Jon Stewart joins ChicagoLIVE to share his perspective.

The International Academy of Astronautics has updated its protocols for confirming and announcing the discovery of alien life. New guidelines address the modern challenges of social media, misinformation, and potential online harassment of scientists.

New claims that the United States has recovered remains of four separate species of alien life are sending shockwaves throughout the UFO disclosure movement, further drumming up conversations surrounding the government’s knowledge of otherworldly life.

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.

The universe contains billions upon billions of stars, countless planets and seemingly endless opportunities for life to emerge. Yet despite decades of searching, humanity has never confirmed the existence of intelligent extraterrestrial life.