The ancient Greek roots of the cross symbol, its significance in cosmology, religion, and philosophy, long before ...

While humans have been making their mark on the surfaces of this Earth for at least tens of ... University of Bologna in Italy has linked symbols on ancient Mesopotamian seals with an archaic ...

Reports from NASA’s Curiosity rover reveal evidence of ancient liquid water on Mars, challenging previous models. Images from Gale Crater show wave-like ripples, similar to Earth’s lakebeds.

A 3.7-billion-year-old record of our planet's ancient magnetism has been unearthed, providing evidence that Earth's magnetic field already existed very early in history. This discovery ...

"Until now, the absence of any truly ancient craters means they are largely ignored by geologists. "This study provides a crucial piece of the puzzle of Earth's impact history and suggests there ...

"Until now, the absence of any truly ancient craters means they are largely ignored by geologists. "This study provides a crucial piece of the puzzle of Earth's impact history and suggests there ...