The deep roots of Earth's oldest continents have long been thought to be unshakable. But a new seismic discovery suggests ...

A deepening trade war could further weaken ties between the superpowers. The effects will reverberate everywhere.

Despite being tied together beneath the surface, these regions diverge sharply above it. Iceland and the Azores are ...

Deion Sanders understands what it's like to play both ways in the NFL. If this perceived weakness were true, "nobody's talking about him as a Round 1 player," Yahoo Sports' Matt Harmon said during ...