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New discovery shows glass from explosive stars – Newspapers



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PARIS: The next time you look through the window in search of inspiration, keep in mind the material you are looking for in an explosive ancient star's suitcase.

The international team of scientists said on Friday that they have discovered silicon – the main component of glass – in the remnants of two distant supernova billion light years from Earth.

The researchers used NASA's Spitzer Space Telescope to analyze the light emitted by the collapse of the mega-cluster and get a "silicon-based" fingerprint based on the specific wavelength of light known to emit material.

Supernova occurs when a large star burns through its own fuel, which leads to a catastrophic collapse that ends with an explosion of galactic proportions. In these celestial spindles, individual atoms meld together and form many common elements, including sulfur and calcium.

Silicate makes up about 60 percent of the Earth's crust and one of the specific forms of quartz is the main ingredient of sand.

In addition to glass windows and fiberglass, silicon is also an important part of the recipe for industrial concrete.

"For the first time we have shown that silicon supernovae produced from the supernova are sufficiently important to contribute to dust throughout the Universe, including the dust eventually merged to form our planet," said Haley Gomez of the Cardiff School of Physics and Astronomy.

"Every time we look out the window, we walk down the sidewalk or step on a sandy beach, we cooperate with the material of explosive stars that burned down millions of years ago." In 2016, scientists discovered that they found traces of lithium – a metal used in the production of many modern electronics – at the heart of the explosion new, a phenomenon that occurs when a white dwarf star absorbs hydrogen from the nearby sun.

The study was published in the monthly notes of the Royal Astronomical Society.

Posted in Dawn, November 17, 2018

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