Wild 2 dust comets reveal the amazing things about the solar system

The chemical evidence from the light of a comet is stimulating observations about the history and development of the solar system and shows that it is more confusing than previously thought.

A new analysis from the Wild 2 comet dust, collected in 2004 in the NASA's Stardust project, found signs of the oxygen isotope showing a surprising mix of solid matter in the center and edge of the solar system. Despite the birth of the comet in a dark, cold place in the space farther away than Pluto, the crystals collected from its light show that these crystals once existed in hotter area, much closer to the Sun.

As a result, a report on September 19 was published in the Science journal of researchers in Japan, NASA and the University of Wisconsin Madison, reflecting on the idea that matter constitutes the solar system. billions of years ago still remained in orbit around the Sun. Instead, the new study suggests that cosmic matter from the asteroid belt between Mars and Jupiter can migrate farther away than the solar system and blend with many other primitive matter.

Observations from this specimen are changing our previous thinking and how expectations are made about the Solar System 'geologist at UW-Madison, Noriko Kita, an author of the article. .

The sign of an isotope of oxygen has been found in comet dust
The tiny crystals in Wild 2 comet, seized in NASA's NASA's Stardust project, are similar to fragments of molten mineral drops called Chondrules, found to be found in ancient primitive meteorites. . Similar incandescent elements were found in Wild 2, a comet made of ice strips in the outer layer, suggesting that solids were transported farther away than the Solar System - Noriko Kita

The NASA's Stardust project captures Wild 2 comet dust in hopes of describing raw materials, which the solar system is incorporated into, since comets were formed more than 4 billion years ago to matter. primitive. Its presence in orbit between Mars and Jupiter creates a rare opportunity to learn more about physical patterns coming from the farthest parts of the solar system and back to the early days of the universe. These specimens, which arrived in Earth in early 2006, were the first solid specimens to return from space since Apollo.

"They are the first hope to find the solar system's precursor material ," Kita explained. "However, we have found many crystalline objects like hot and hot molecules found in celestial bodies." jelly from asteroids'

In this new study, scientists led by Tomoki Nakamura, a professor at Kyushu University in Japan, analyzed the oxygen isotopic components of the three crystals collected from the comet glow to better understand the source. their root. He and scientist Takayuki Ushikubo in UW-Madison analyzed tiny particles - about 1/1000 of an inch, with a unique device called microprobe (a micro probe used to identify chemical components). of the solid surface, .) at the Secondary Ion Mass Spectrometer (Wisc-SIMS), which is the most advanced equipment of the same type in the world.

Unexpectedly, they found the ratio of oxygen isotopes in crystals from comets similar to asteroids even the Sun itself. Because these specimens are more similar to meteorites than primitive, low-temperature materials are expected to be farther away than the solar system, analyzing them to show that the molecular process is transferred out. how is the solar system

"This really complicates our simple view of the Solar System in the early days" - according to Michael Zolensky, NASA's space mineralist at Johnson Space Center in Houston, USA.

"Even thinking that the comet itself came from farther away than Pluto, there are still many more complicated things about the history of evacuation of specimens in the solar system and the original material perhaps composed. Much closer to Earth, "said John Valley, UW-Madison geology professor. 'These findings are the cause of the review of solar system theories.'

The article was provided by reader Tran Ba ​​Hoang Long.
Email:longfigo.1988@gmail.com