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Tag Archives: Galaxies

Galaxies eject gas when they merge, preventing new stars forming – new research

Elliptical galaxies are filled with extremely old stars. Igor Chekalin/Shutterstock.com Annagrazia Puglisi, Durham University Most stars in the universe today are found in massive galaxies called ellipticals, named for their stretched-out-circle shape. Unlike our own galaxy, which is a spiral with arms extending out from the centre, the edges of elliptical galaxies are smooth. At first glance, these galaxies might …

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