WASHINGTON -- NASA has agreed to search its archives once again for documents on a 1965 UFO incident in Pennsylvania, a step the space agency fought in federal court. The government has refused to ...

As the world began to look away from the green-tinged visitor streaking through our cosmic backyard, a cryptic message from ...

A CIA refusal to confirm or deny records on interstellar object 3I/ATLAS has revived debate about its nature. While NASA insists it is a natural comet, Harvard scientist Avi Loeb points to unexplained ...