Astronomers witnessed planets colliding 11,000 light-years away, an event that could shed light on the collision that created Earth's moon.

Iran-backed militias across the Middle East have escalated their attacks against American and Israeli targets.

Experts give El Niño conditions a 62 percent chance of emerging later this year.

Tensions on the Korean Peninsula have surged again after Kim Jong Un ordered the launch of a suspected ballistic missile toward the Sea of Japan. The projectile was fired from North Korea’s east coast during large-scale military drills being conducted...