The asteroid Ryugu is an echo from the deep, distant past. Two tiny grains of the rock, delivered to Earth in 2020 by the famous Hayabusa2 mission, contain minerals older than any found on our planet.

Large quantities of water once flowed through the asteroid Ryugu, an indication that asteroids could have brought much more water to Earth than previously thought. The origin of Earth’s water is ...

A new analysis of asteroid Ryugu hints that the "potentially hazardous" space rock once had flowing water in its core, possibly leftover from the impact that created it. When you purchase through ...