Artificial Intelligence Is Moving From Physics Assistant to Experimental Partner For centuries, discovering a new law of physics meant some combination of human intuition, mathematical insight, painstaking experimentation and, occasionally, extraordinary luck. That formula is beginning to change. Artificial...

The Most Puzzling Reports Aren't in the Sky On a clear night over the ocean, military sensors track an unidentified object moving above the water. Moments later, the target appears to descend toward the sea. Operators attempt...

The astonishing reason every star above your head is a message from another time On a clear night, the universe feels immediate. The Moon hangs overhead. Bright planets glow against the darkness. Thousands of stars appear frozen in...

The Most Puzzling Reports Aren't in the Sky On a clear night over the ocean, military sensors track an unidentified object moving above the water. Moments later, the target appears to descend toward the sea. Operators attempt...