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

Ryugu’s samples reveal that water activity on asteroids lasted far longer than scientists thought, possibly reshaping ...

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

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

The planet has been so drastically transformed since in that time, no unmixed trace of the proto-Earth was thought to have ...