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Star formation within interstellar clouds of gas and dust, so-called molecular clouds, proceeds very rapidly yet highly 'inefficiently'. Most of the gas is dispersed by stellar radiation, revealing galaxies to be highly dynamic systems, like 'cosmic cauldrons', consisting of components that constantly change their appearance. A team of scientists has reached these conclusions based on new observations of the NGC 300 spiral galaxy.
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Computer simulations provide compelling evidence that an insulating layer of gas hydrates could keep a subsurface ocean from freezing beneath Pluto's icy exterior.
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A research group is using a deep learning method known as generative adversarial networks to enhance the use of gravitational lensing in the study of dark matter.
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The irregular galaxy NGC 4485 shows all the signs of having been involved in a hit-and-run accident with a bypassing galaxy. Rather than destroying the galaxy, the chance encounter is spawning a new generation of stars, and presumably planets.
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New research shows that gravitational waves leave behind plenty of 'memories' that could help detect them even after they've passed.
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NASA's Spitzer Space Telescope has revealed that some of the Universe's earliest galaxies were brighter than expected. The excess light is a by-product of the galaxies releasing incredibly high amounts of ionizing radiation. The finding offers clues to the cause of the Epoch of Reionization, a major cosmic event that transformed the universe from being mostly opaque to the brilliant starscape seen today.
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Researchers have found, analyzing data from the Gaia satellite, that a strong star formation burst occurred in the Milky Way about 2 to 3 billion years ago. In this process, more than 50 percent of the stars that created the galactic disc may have been born.
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To address messy measurements of the cosmic web that connects matter in the universe, researchers developed a way to improve the accuracy and clarity of these measurements based on the stretching of the universe's oldest light.
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Instead of ballooning into spheres, as once thought, early supernovae ejected jets that may have seeded new stars.
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Detection of a supernova with an unusual chemical signature may hold the key to solving the longstanding mystery that is the source of these violent explosions. Observations taken by the Magellan telescopes at Carnegie's Las Campanas Observatory in Chile were crucial to detecting the emission of hydrogen that makes this supernova, called ASASSN-18tb, so distinctive.
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