At 62 miles (100 km) wide and over four miles (seven km) thick, the massive rocky structure is roughly half the size of Wales ...

"This finding is the first direct evidence of water’s interstellar journey from clouds to the materials that form planetary ...

Rocks store information from long ago. For instance, their composition can reveal the environmental conditions during their ...

Researchers have discovered chemical fingerprints of Earth's earliest incarnation, preserved in ancient mantle rocks. A ...