Japan's unmanned Hayabusa2 Space Probe is on its way back to earth after reaching out ryugu asteroid mission (250 million km).
Hayabusa2 is scheduled to return to Earth by the end of 2020
If the return trip is completed successfully, then it will be the first-time samples from beneath an asteroid's surface have been brought back to Earth.
Asteroids are believed to have formed at the dawn of the solar system.
The asteroid Ryugu may contain organic matter that may have contributed to life on Earth.