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A team of experts has managed to bring back 500 kg of fresh snow from Antarctica. They melted and sifted the remaining particles.
The analysis would have included a surprise because the snow contained quite significant amounts of a type of iron naturally not produced on Earth.
Other scientists had previously spotted the same rare isotope of iron in some deep ocean crusts.
This is called iron 60 and contains four more neutrons than the most common form of Earth on this element.
But iron 60 in the crust probably was deposited on the surface of the Earth millions of years ago.
This is opposed to what has been found in the fresh Antarctic snow that has managed to accumulate over the past 20 years.
"This is the first evidence that someone has seen something so recent," according to Dominik Koll, a physicist at the Australian National University of Canberra, who is also the director. lead author of the study.
The team published its findings this week in the newspaper Letters of physical examination.
An interstellar meteor
Space objects, ranging from dust to meteors, regularly fall on Earth and are usually made with the same materials as the planet Earth.
You may know that everything in our solar system, including the sun, comes from the same building blocks from billions of years ago.
Phys.org notes that iron-60 is not one of these common materials, which can only mean one thing: it must come from somewhere other than the solar system.
"A [interstellar] Meteor is a very rare event. However, the smaller the object, the more abundant it is, "according to Harvard astronomer Avi Loeb.
Speaking of space rocks, we have also recently announced new information on a double asteroid system.
Didymos is a twin asteroid classified as potentially dangerous. This system also has a risk of impact on our planet of origin.
The city killer was reportedly targeted by ESA for the purpose of diverting him from a possible collision course.
Rada attended the courses of the Faculty of Arts, Romanian-English section, and completed the Faculty section of theater and television, theatrical journalism, both as part of the Babeş-Bolyai University of Cluj-Napoca. Until now, she has been reviewing books, films and plays, enjoying topics from the cultural niche. Her writing experience also cuts across the IT niche, since she has worked as a content editor for companies that produce software for mobile devices. She collaborates with online advertising agencies and writes articles for several websites and blogs.
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