Alarmed defense experts believe these UFOs may be highly advanced, next-generation spy drones, raising concerns about American technology being outstripped by previously unknown foreign adversaries, and a sighting above Syria – in skies heavily contested by the U.S., Russia, China and Iran – has only added to the angst.

No bombshells so far in the latest Pentagon batch of declassified Unidentified Anomalous Phenomena files. But they show the CIA hid its involvement.

The Pentagon on Friday released a new group of documents and videos related to UFOs, or UAPs, with 72 more documents, images and recordings.

There are a lot of documentaries about UFOs that don't devolve into sensationalist conspiracy theories. These are the best ones.

Newly released FBI, CIA and Air Force records reveal decades of UFO investigations, unexplained sightings and classified interest.

Astronomers have detected one of the most powerful ultra-fast outflows ever seen from a distant supermassive black hole. Using XMM-Newton and NuSTAR, a team studied a hyper-luminous quasar at cosmic noon and found two distinct wind components blasting away from the black hole,

Harvard theoretical physicist Avi Loeb discusses the Pentagon's third batch of newly released UFO files. Loeb highlights that 40% of reported cases remain unresolved, prompting questions about national security concerns and the potential for non-human made objects.

A new batch of UFO files has been released by the U.S. federal government. As usual, they don’t feel as impactful as they should. Back when the first batch was being released a little over a month ago,