Extragalactic archaeology reveals chemical evolution of giant spiral galaxy

Scientists have traced the chemical fingerprints in the gas of a galaxy designated as NGC 1365 to trace its evolution. The approach introduces a new field of extragalactic archaeology.

New Delhi: Galactic archaeology is the study of chemical fingerprints in deep space to trace the history of the galaxy. For the first time, astronomers have used the technique in a galaxy outside the Milky Way, demonstrating a novel approach to reconstruct the evolution of distant galaxies, and opening up the brand new field of extragalactic archaeology. This is the first time that the method has been used in such granular detail outside the Milky Way. The........

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