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Ancient Cosmic Collision Reveals Quasars' Impact on Galaxies

5/22/2025

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Summary

Story summary

Astronomers have made a groundbreaking discovery, witnessing a cosmic collision of two galaxies from 11 billion years ago. Utilizing the European Southern Observatory’s Very Large Telescope and ALMA, they observed how a quasar disrupted gas in one galaxy, stifling star formation. This pivotal observation sheds light on the powerful influence of quasars on galaxy evolution.

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Story summary

Astronomers have made a groundbreaking discovery, witnessing a cosmic collision of two galaxies from 11 billion years ago. Utilizing the European Southern Observatory’s Very Large Telescope and ALMA, they observed how a quasar disrupted gas in one galaxy, stifling star formation. This pivotal observation sheds light on the powerful influence of quasars on galaxy evolution.