Asteroid 2013 BO76 LIVE – Nasa says ‘close approach’ of giant space rock at 30,000mph on Thursday

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Asteroid mystery solved, continued

Currently, the theory is that Ryugu originated from debris left by the collision of two larger asteroids, but that doesn’t explain why the asteroid is so high in organic content, Newsweek noted.

New findings published in The Astrophysical Journal Letters suggest Ryugu is, in fact, the remains of a dead or extinguished comet.

The new theory involves the comet losing its ice content in a way that could have ended up with it having the “unique characteristics” it does.

Lead author Miura told Newsweek: “Depending on whether Ryugu was originally an asteroid or a comet, it experienced a very different environment.”

“Asteroids formed in warm regions relatively close to the sun. On the other hand, comets formed in a cooler environment away from the sun.”

“To assume off the top of one’s head that Ryugu was originally an asteroid is to overlook the possibility that Ryugu may have been in a cold environment.”

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