Microscopic grains of ancient material that predate the birth of our Sun have been found in samples brought back to Earth from the asteroid Ryugu by the Hayabusa2 mission.
It is the conclusion of a new work of an international team led by Jens Barosch and Larry Nittler of Carnegie and published in The Astrophysical Journal Letters.
Named for a Japanese folk tale, Ryugu is a spinning top-shaped near-Earth object that revolves around the sun every 16 months. Hayabusa2 was the first mission to bring material to Earth from a primitive asteroid, offering a single view of chemical composition of the building blocks from which our Solar System was formed.
“Different types of presolar grains originated from different types of stars and stellar processeswhich we can identify from their isotopic signatures,” Barosch explained in a statement. Isotopes are versions of elements with the same number of protons, but different numbers of neutrons.
He added: “The opportunity to identify and study these grains in the laboratory may help us understand the astrophysical phenomena that shaped our Solar System, as well as other cosmic objects.”
Each generation of stars seeds the raw material from which the next generation is born. Like a phoenix rising from the ashes, our Sun originated more than 4.5 billion years ago. of years when a supernova explosion blasted material into a pre-existing cloud of gas and dust, causing it to collapse in on itself. Remnants of this process formed a spinning disk of material around baby sun from which the planets and other objects merged, including the parent bodies that eventually collided with each other and broke apart to become asteroids and meteorites.
The Hayabusa2 samples allow scientists to investigate the composition of Ryugu with sophisticated microanalytical instruments and compare it to material found in primitive meteorites called carbonaceous chondrites that crashed into the Earth.
The team detected all types of previously known presolar grains, including a surprise, a silicate that is easily destroyed by chemical processing which is expected to have occurred in the main body of the asteroid. It was found in a less chemically altered fragment that probably protected it from such activity.
“The compositions and abundances of the presolar grains we found in the Ryugu samples are similar to those we have previously found in carbonaceous chondrites,” explained Nittler, who did this work at Carnegie but recently moved to Arizona State University. . “This we provides a more complete picture of the formative processes of our Solar System that may inform future models and experiments on samples from Hayabusa 2, as well as other meteorites.”
Asteroid Ryugu contains material older than the Sun
& Latest News Update
Asteroid Ryugu contains material older than the Sun
& More Live News
All this news that I have made and shared for you people, you will like it very much and in it we keep bringing topics for you people like every time so that you keep getting news information like trending topics and you It is our goal to be able to get
all kinds of news without going through us so that we can reach you the latest and best news for free so that you can move ahead further by getting the information of that news together with you. Later on, we will continue
to give information about more today world news update types of latest news through posts on our website so that you always keep moving forward in that news and whatever kind of information will be there, it will definitely be conveyed to you people.
Asteroid Ryugu contains material older than the Sun
& More News Today
All this news that I have brought up to you or will be the most different and best news that you people are not going to get anywhere, along with the information Trending News, Breaking News, Health News, Science News, Sports News, Entertainment News, Technology News, Business News, World News of this made available to all of you so that you are always connected with the news, stay ahead in the matter and keep getting today news all types of news for free till today so that you can get the news by getting it. Always take two steps forward
Credit Goes To News Website – This Original Content Owner News Website . This Is Not My Content So If You Want To Read Original Content You Can Follow Below Links