In the news:
"
Supernova shrapnel found in meteorite"
Quote:
Scientists have identified the microscopic shrapnel of a nearby star that exploded just before or during the birth of the solar system 4.5 billion years ago.
...
Faint traces of the supernova, found in a meteorite, account for the mysterious variations in the chemical fingerprint of chromium found from one planet and meteorite to another.
...
Researchers have already extracted many type II supernova grains from meteorites, but never from a type IA supernova.
...
they had to search 1,500 microscopic grains of the Orgueil and Murchison meteorites
..
The grain measured less than 100 nanometers in diameter — 1,000 times smaller than the diameter of a human hair.
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Man, I'm glad that's not my job !!
Cheers
