Bits of asteroid Ryugu are among ‘most primordial’ materials ever examined

Tiny particles of rock gathered from the asteroid Ryugu are some of the most primordial bits of material ever examined on Earth and could give us a glimpse into the origins of the solar system.

Asteroid 162173 Ryugu measures about 2,953 feet (900 meters) in diameter and orbits the sun between Earth and Mars, occasionally crossing Earth’s orbit, according to Live Science’s sister site The carbonaceous, or C-type, asteroid spins like a top as it hurtles through space, and like other C-type asteroids, Ryugu likely contains material from the nebula (giant cloud of dust and gas) that gave birth to the sun and its planets billions of years ago, scientists think.