Ryūgū-jō or Ryūgū is the supernatural undersea palace of Ryūjin or Dragon God in Japanese tradition. It is best known as the place in fairytale where Urashima Tarō was invited after saving a turtle, where he was entertained by the Dragon God's princess Oto-hime and his minions, but when Urashima returned back to land after what he thought was a few days away, centuries had passed.

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Probing the effects of interplanetary space on asteroid Ryugu

Unlocking the Mysteries of Life: Scientists Decode Asteroid Ryugu’s Cometary Organic Matter

Asteroid Ryugu Contained Bonus Comet Particles

Messenger comets might be why Earth has life, asteroid Ryugu samples suggest

Scientists have discovered “evidence” of the seeds of life from space in samples of the Ryugu asteroid

Records of cometary dust hitting the asteroid Ryugu

Rethinking Cosmic Origins: The Ryugu Asteroid Samples’ Revelatory Findings

Life beyond Earth may form in the coldest depths of space, Ryugu asteroid samples reveal

Ryugu samples illuminate terrestrial weathering effects on primitive meteorites

What would happen if the asteroid Ryugu hit Earth?

Asteroid Ryugu Contains Niacin (aka Vitamin B3)

Asteroid samples brought back to Earth from Ryugu found to contain uracil, one of the four nucleotide bases in RNA. The discovery adds weight to the theory that basic organic molecules may have arrived on Earth from outer space.

Scientists Find Vitamin B3 and Uracil in Samples from Asteroid Ryugu

Scientists have discovered the chemical compound uracil, one of the building blocks of RNA, in just 10 milligrammes of material from the asteroid Ryugu

Uracil detection in the carbonaceous asteroid (162173) Ryugu

Uracil found in Ryugu samples

Building block of life found in sample from asteroid Ryugu

Component of RNA Found in Asteroid Ryugu Samples

Samples from asteroid Ryugu contain one of the building blocks of RNA

A crucial building block of life exists on the asteroid Ryugu