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Stellar Nucleosynthesis

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Element Origins After the Big Bang, the ordinary matter in the Universe was composed primarily of just two elements: hydrogen and helium. Currently, there are a wide range of elements, from argon to zirconium. These more complex elements were nearly all produced via stellar evolution processes. The formation of new elements is called nucleosynthesis . Below,  I have describe the basics of the chemistry of the Universe and how it has changed over time. Big Bang Nucleosynthesis  The star-forming region 30 Doradus. The blue stars are massive, hot, young stars. They have formed in a cluster out of gas and dust. (Credit: NASA, ESA, HST WFC3) When the Big Bang occurred approximately 14 billion years ago, the Universe was very hot and dense. Over time, the Universe expanded and cooled down. Approximately 0.001 seconds after the Big Bang, particles (e.g., protons and neutrons) began to fuse together to form atomic nuclei, dubbed nuclear fusion . Nuclear fusio...
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die Sternenkönigin M16

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Space is something that fascinates many as humans are naturally curious and the cosmos is the biggest mystery, because unless humans become space-faring there will always remain unanswered  questions such as where we came from,where we are going,why is the universe organized as it is?Are we alone? And how physics works under conditions which are impossible to recreate on Earth. universe This site is to create awareness about various different spacial entities and also to make everyone realize how insignificant the human physical existence is,and how great the human mind, with an intelligence that is now embracing a dazzling range of phenomena,from the astronomically large to the infinitely small. Astronomy has always been my passion since my childhood. I started looking at the pictures in astronomy books before I could even read. The pictures were beautiful,fascinating and intriguing. As I grew up I wanted to know all about what those pictures meant.I am still learning. ...
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Primordial Chill Hints at Dark Matter Interactions in Early Universe A simple experiment has detected a signal from the first stars forming just 180 million years after the Big Bang. The observations have intriguing implications for the nature of dark matter.   The first stars began to shine just 180 million years after the Big Bang , according to new observations by a team of American radio astronomers. The evidence comes from observations of neutral hydrogen gas that pervaded the early universe. But surprisingly, the same observations show an unexpected chill in this gas — a result that could hint at non-gravitational interactions with dark matter . “This is a really cool result,” says Michiel Brentjens (Netherlands Institute for Radio Astronomy), who was not involved in the study. “It’s an important first step in revealing how the very early universe behaved.” For years, astronomers like Brentjens have been trying to detect the early univers...
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