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Study Traces 12 Billion Years of NGC 1365's Evolution

3/24/2026

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Summary

Story summary

A team led by the Center for Astrophysics reconstructed the 12-billion-year evolution of NGC 1365.
The team used chemical fingerprints to trace formation and growth via mergers with smaller galaxies.
In the March 23 study, they show that the central region formed early and became oxygen-rich, and that outer regions developed over billions of years.
The findings inform Milky Way origins and spiral galaxy formation.

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Story summary

A team led by the Center for Astrophysics reconstructed the 12-billion-year evolution of NGC 1365.
The team used chemical fingerprints to trace formation and growth via mergers with smaller galaxies.
In the March 23 study, they show that the central region formed early and became oxygen-rich, and that outer regions developed over billions of years.
The findings inform Milky Way origins and spiral galaxy formation.