An unidentified object that recently washed ashore in Japan and prompted investigations by bomb disposal squads may have been identified.
In the past few months over a dozen influential Russians have mysteriously died. What the heck is going on?
Scientists say they have solved a long-standing mystery why lightning strikes over land are more frequent and often stronger than over sea.
After decades of halfhearted smirks and outright dismissals, new space chief Bill Nelson says NASA is officially joining the UFO effort.
New research suggests that gravitational waves may help unravel questions about the current rate of expansion of our universe.
The region known as the South Atlantic Anomaly has perplexed scientists and space explorers for decades. What is it and why is it there?