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Showing posts with the label galaxies

Hubble finds spiraling stars, providing window into early universe

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The universe is carved by stars, yet their formation is still largely unknown to science. Researchers looked to the Small Magellanic Cloud, a satellite galaxy of the Milky Way, to better comprehend the frenetic "baby boom" of star creation that took place early in the history of the universe. This close galaxy resembles galaxies discovered in the earlier cosmos, when heavy metals were more abundant, since it has a simpler chemical makeup than the Milky Way. As a result, it can stand in for the early universe. Recent research using the Very Large Telescope of the European Southern Observatory and the Hubble Space Telescope both reached the same conclusion. The diverse teams discovered young stars spiraling into the core of the large star cluster NGC 346 in the Small Magellanic Cloud using various techniques. According to researchers, the migration of gas and stars like a river is an effective technique to promote star formation. The team's findings demonstrate that the Sma...

Comet impacts formed continents when Solar System entered arms of Milky Way

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The conventional wisdom regarding the genesis of our planet has been turned on its head by new study from Curtin University that suggests the early continents of Earth were formed as a result of comet impacts as our Solar System entered and exited the spiral arms of the Milky Way Galaxy. A new perspective on Earth's early history and our place in the universe is provided by the new research, which was published in Geology and challenges the conventional wisdom that the planet's crust was only created by internal processes. Studying minerals in the Earth's crust revealed a rhythm of crust production every 200 million years or so, Professor Chris Kirkland, the study's principal investigator, from Curtin's School of Earth and Planetary Sciences, said. This rhythm matched our Solar System's transit through regions of the galaxy with a higher density of stars. Every 200 million years or so, the Solar System passes between the spiral arms of the Milky Way as it revolv...

Cosmic Evolution Early Release Science Survey: Wide view of the early universe

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Recent pictures taken by NASA's James Webb Space Telescope reveal what might be one of the oldest galaxies ever seen. One of the photographs has a significantly larger field of view than Webb's First Deep Field image, which was published on July 12. The images show objects from more than 13 billion years ago. The photographs are among the first to come from a significant partnership between astronomers and other academic researchers working with NASA and international partners to learn new things about the cosmos. Images from the Cosmic Evolution Early Release Science Survey (CEERS), which was directed by a researcher at The University of Texas at Austin, were used to create the artwork. The School of Physics and Astronomy at Rochester Institute of Technology's Jeyhan Kartaltepe is one of 18 co-investigators from 12 different universities, in addition to more than 100 additional collaborators from the United States and nine other nations. When the universe was less than 5% ...