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New Discoveries on Asteroid Rjugu: Insights into the Origins of Life

Summary

Recent research conducted by the Japanese space mission Hayabusa2 on the asteroid Rjugu has unveiled fascinating insights into our solar system. By studying samples from the asteroid’s surface, scientists have found “stains” made of dust brought to Rjugu by comet […]

Rjugu asteroid: Otkrivena organska materija koja je mogla doneti život na Zemlju

Recent research conducted by the Japanese space mission Hayabusa2 on the asteroid Rjugu has unveiled fascinating insights into our solar system. By studying samples from the asteroid’s surface, scientists have found “stains” made of dust brought to Rjugu by comet impacts. Within these stains, researchers have discovered small carbonaceous materials that resemble primitive organic matter.

This organic matter could potentially be a crucial component for life, which once arrived on Earth from space. Scientists believe that these carbon materials were formed from organic matter on comets, which vaporized during the heating caused by impacts.

When a comet enters the inner solar system, the heating from solar radiation converts its ice into gas, a process known as sublimation. When this gaseous material is expelled from the comet, it carries surface debris with it. These debris leave trails of dust around the Sun, and when Earth passes through these trails, we can witness meteor showers.

Rjugu, being an asteroid without a protective atmosphere, has a higher chance of preserving this comet-derived material on its surface. Therefore, studying these dusty remnants can reveal valuable information about the early solar system.

In addition to the discovery of organic matter, researchers have also found traces of water vapor trapped within the material of Rjugu’s surface. Analyses indicate that these “stains” mostly consist of silicate glass with perforations and small traces of iron sulfide, suggesting the mixing of hydrosilicates with comet dust.

Scientists are now searching for new stains caused by comet dust impacts in order to unravel more information about the transport of primitive organic matter in the space around Earth over four billion years ago.

This research opens new doors in understanding the origins of life on Earth and offers insights into the fascinating world of the solar system that surrounds us.

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