The list of descriptions being offered in response to an admittedly mysterious object found washed ashore in Japan is endless. To be clear, the object—widely referred to as an “iron ball” of some sort ...

Researchers studying the sphere say it appears to have no visible welds or joints-features that typically indicate human manufacturing. Research suggests Earth’s inner core, a metal sphere within the ...

An curved arrow pointing right. A mysterious metal sphere washed up on a Japanese beach. Authorities said the object isn't a threat. More from News A mysterious metal sphere washed up on a Japanese ...