Scientists still struggle to understand consciousness, aging, memory formation and why humans hiccup or yawn, revealing a hint of how much remains unknown.

The universe continually reminds us that our understanding of reality remains deeply incomplete, despite the billions invested in cosmic research. Every year brings a new particle or phenomenon that ...

I have always been drawn to the strange edge cases where our best theories simply do not fit the facts. From mysterious weather in Kentucky to puzzling signals from deep space, some events and objects ...

What is the greatest mystery in the ocean? It might be the ocean floor itself. Although the oft-heard statistic is that we know more about the surface of Mars than we do about the ocean seabed, ...

A NASA scientist proposes a bright comet observed around 5 BC might explain the Star of Bethlehem. Detailed Chinese sky records describe a \"broom star ...