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Material from the asteroid Bennu is now being examined on Earth, and the composition of the rock prompts researchers to speculate.
TUCSON, Ariz. – In September 2023, NASA's OSIRIS-REx space probe delivered precious cargo to Earth: material from an extraterrestrial celestial body. This was investigated in advance Dangerous asteroid “Bennu” Materials of special interest to science were visited and collected there. Asteroids It is considered one of the effects of the development stage Solar System It is considered and can provide valuable information about this era. It is also discussed Whether it is the source of water or even the basis of life on Earth.
Pino (1999 RQ₃) |
Apollo asteroid |
September 11, 1999 |
437 days |
0.492 km |
566m x 542m x 499m |
NASA brings samples of the dangerous asteroid “Bennu” to Earth
The first samples of “Osiris Rex” It was distributed to scientific institutions last year, including one in Frankfurt. However, the US Space Agency managed to do so NASA Most of the material was only recently accessed after I was able to Two screws stuck It must be solved with special tools. Dante Lauretta, the principal investigator on the Osiris-Rex mission, was able to examine the material in a laboratory at the University of Arizona.
“We're going to be busy for a very long time,” says the scientist. On the gate Space.com website. “That's a huge amount of samples for us.” The first results will be presented by various research teams at the Lunar and Planetary Science Conference in Texas next month. According to Lauretta, more than 70 abstracts of scientific findings have already been submitted to the conference. “All this will be published from March,” the scientist said.
Traces of water and carbon have been found in materials from the asteroid Bennu.
It is already known that traces of water and carbon – essential elements for life on Earth – have been found in the asteroid material. Another discovery that's already got the scientific community excited: The asteroid's material “looks dramatically different from anything else in our meteor collection,” says Loretta. “There is a whole range of materials that we cannot access if we rely solely on meteorites,” he adds.
The problem with meteorites is that they fall through the Earth's atmosphere and become hot as they fall. This changes their material, and it is often difficult to determine which asteroid they came from. in Meteorites recently collected near Berlinbut this was not a problem.
Materials directly from asteroids are important for research
Material taken directly from an asteroid in space offers crucial scientific advantages: it can be packaged in an atmosphere that changes the material only minimally. So science has access to original materials from the early days of the solar system. In addition, the asteroid mission is easy.
Loretta says that the samples taken from Bennu show a phosphate layer that has not been observed in meteorites before. According to the scientist, similar high concentrations of phosphate have already been discovered on extraterrestrial ocean worlds. For example, Saturn's moon Enceladus contains phosphate, an important building block for life. Loretta believes that “asteroid Bennu may be part of an ancient ocean world.” This is his working hypothesis, Explains to new world. “This is still highly speculative. But this is the best evidence I have at the moment to explain the origin of this material.” (unpaid bill)
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