Asteroid samples returned to Earth reveal possible water and life-building materials.

Asteroid samples returned to Earth reveal possible water and life-building materials.

Outer Solar System asteroids may have introduced life to Earth.

New research explains how the inner Solar System, including Earth, got water and organic-rich components.

Kochi Team2 studied eight particles retrieved from asteroid Ryugu by Hayabusa2.

Motoo Ito of JAMSTEC is led by researchers from The Open University (OU) and UCLA, USA.

They used data to match returned asteroid elements to the meteorite record.

Spacecraft data suggested that Ryugu had endured high temperatures.

Because of this, most of its water may have evaporated. The theory proved wrong.

It's mostly water and organic materials. OU scientists confirmed that Ryugu samples resemble CI (Ivuna-type) chondrites.

These are the most important meteorites because they match our Solar System's composition.

They also showed that terrestrial contamination contaminated CI chondrites.

The Ryugu samples are the most pristine, primitive Solar System samples we have.

When Haybusa2 surveyed Asteroid Ryugu in space, the results seemed dismal.

The asteroid's components had been cooked to a high temperature, releasing much of their water into space.

OU scientists found that Ryugu samples were identical to unheated CI (Ivuna-type) chondrites.

These materials closely resemble the makeup of the Sun and Solar System.