The San Francisco forensics lab that helped crack the Gilgo Beach serial killer case is now believed to be involved in the ...

Measurements of this interstellar comet’s molecular makeup show an excess of heavy water molecules that is dramatically ...

Trump said the Pentagon review of UFO-related documents found 'many very interesting' records that would be released 'very, ...

Earth is dotted with humongous, human-made structures that, to an alien eye, may be tell-tale signs of intelligent goings-on.

This enigmatic orb has undergone extensive examination and DNA testing, enabling scientists to reveal its true origins ...

Add Yahoo as a preferred source to see more of our stories on Google. Pima County Sheriff Chris Nanos speaks to the media about Nancy Guthrie. (Jan Sonnenmair via Getty Images) Pima County Sheriff ...