NASA says new space telescope will create 'atlas of the universe'

NASA unveils Nancy Grace Roman telescope, set to create an unprecedented atlas of the universe and probe the mysteries of dark matter and dark energy. | Contesto: cronaca

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• NASA says new space telescope will create 'atlas of the universe'

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NASA on Tuesday unveiled the Nancy Grace Roman space telescope, a powerful new observatory designed to map the universe and search for distant planets. The agency described the mission as a transformative step toward creating what it called an 'atlas of the universe,' capable of revealing celestial structures and phenomena on an unprecedented scale. The telescope, named after NASA’s first chief astronomer, will use advanced infrared vision to observe light emitted by stars and galaxies billions of years ago, offering a window into the early cosmos. The Roman telescope is expected to play a central role in the ongoing scientific quest to understand dark matter and dark energy, two of the most elusive components of the universe. Dark matter, which does not emit, absorb, or reflect light, is thought to make up about 27 percent of the cosmos, while dark energy, a mysterious force driving the accelerated expansion of the universe, accounts for roughly 68 percent. By surveying vast swaths of the sky with unprecedented speed and resolution, Roman will help scientists map the distribution of dark matter and measure the effects of dark energy over cosmic time. In addition to its cosmological goals, the telescope will be a powerful tool for exoplanet research. Using a technique called microlensing, Roman will detect planets by observing the slight brightening of a distant star when a planet passes in front of it. This method is particularly sensitive to planets that are too far from their host stars to be detected by other means, including rocky worlds in the habitable zone. NASA estimates that the mission could find thousands of new exoplanets, dramatically expanding the known population of worlds beyond our solar system. The telescope’s wide-field instrument gives it a field of view 100 times larger than that of the Hubble Space Telescope, allowing it to cover large areas of the sky in a fraction of the time. This capability is essential for creating the comprehensive atlas NASA envisions, one that will chart the positions and properties of billions of galaxies. The data will serve as a lasting resource for astronomers worldwide, enabling studies ranging from galaxy...

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Categoria: cronaca