The Asteroid That Carried Water0

• NEWS, SCIENCE-TECH, WORLD
• September 21, 2025

When Japan’s Hayabusa2 spacecraft returned tiny rock fragments from the asteroid Ryugu, scientists expected nothing more than dry dust from space. Instead, inside those dark grains lay a secret that could change how we understand the birth of Earth’s oceans. At first glance, Ryugu seemed ordinary — just another near-Earth asteroid drifting silently through the