Japanese scientists will study the source of heat on the asteroid Ryugu

Scientists from the Japan Aerospace Exploration Agency (JAXA) said they had conducted a preliminary

study of 5.4 grams of soil, which the spacecraft Hayabusa 2 ("Hayabusa-2") brought in December from the asteroid Ryugu. The space object is located 300 million kilometers from the Earth.

About 3 grams of black granules taken from the surfaceRyugu during the Hayabusa 2 landing on an asteroid in April 2019. About 2 grams of larger fragments up to 1 centimeter in size were obtained from under the surface in the crater. It was created by the spacecraft itself when it landed a second time.

Based on the analysis of the data transmittedHayabusa 2, using a near-infrared spectrophotometer, JAXA scientists found that the asteroid was exposed to extremely high temperatures both on the surface and below it. Perhaps due to an internal heat source or planetary collisions, rather than heat from the Sun.

Kohei Kitazato, a planetary scientist at Aizu University working with JAXA, said his team had detected signs of heat exceeding 300 ° C.

He added that the soil underground will not be able to reach this temperature just because of the sun's heat.

JAXA Continues Initial Study of Samplesasteroids. Scientists will also study possible traces of organic matter in the hope that they will help understand the origin of the solar system and life on Earth.

After being studied in Japan, some samples will be donated to NASA and other international space agencies for additional research.

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