Radioactive Dust in the Antarctic Ice Comes From Ancient Supernova

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How could researchers find this time something like this is not hard to tell, not even to explain it, but the reason why it took them so much to discover it, well, it’s another story. Let’s find out how something so radioactive got involved with the Antarctic ice. Recent research resurfaces about something entirely new and intriguing. Scientists succeeded to find some proof about radioactive dust deep in the Antarctic ice, which comes from an ancient supernova.

It is also demonstrated that it has ancient origins found on the same kind of supernovas, phenomenon which occurred million years ago, of course. The incredible fact that the whole outer space is full by dust, not with the sole provenience from the solar system, but with amazing interstellar provenience, represent for scientists a great chance to study the Earth’s dust. Also, they could get an enhanced insight into the galactic setting.

Scientists’ began with something brave, choosing for their study to excavate 500 kilograms of fresh snow, meaning it wasn’t from an extended period, approximately 20 years old. They further developed their mission by caring the snow from the Kohnen Center, Antarctica to Munich, and finally, they arrived with it in Germany.

Radioactive Dust in the Antarctic Ice Comes From Ancient Supernova

In order to analyze it better, the scientists began by melting the fresh snow to water, putting them into a recipient with a filter and afterward, evaporating it. After the final process, it was easy for them to identify the most exciting particles which left a trace of dust and some micrometeorites were gathered, as well.

Using one of their advanced tools out there, the Accelerator Mass Spectrometer, scientists put a sample of incinerated dust into it, being transferred afterward, into the identifier. Atomic isotopes were discovered through this process, as well.

However, what scientists try to make us understand is the fact that their project is significant to get some things straight, about the interstellar environment, for example. Also, they stated that the Sun is caught in a ‘Local Bubble’ in which an interstellar area is a little bit dense than the ordinary interstellar density. The reason is pretty simple, they said. An ancient supernova that took place approximately a million years ago. Called ‘Local Interstellar Cloud’, is actually an area next to the ‘Local Bubble,’ is a little bit denser. The Antarctic ice containing radioactive dust is crucial to reach the provenience of the ‘Bubble’ and ‘Cloud.’


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