Story perspectives

Groundbreaking Map Reveals Milky Way's Central Gas Clouds

3/6/2026

Summary

Story summary

Researchers have unveiled the largest, detailed map of gas clouds at the Milky Way's center.
The map was made with the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile and spans 650 light-years.
It reveals structures around Sagittarius A* in the Central Molecular Zone, key for star formation.
ACES involved over 160 scientists and seeks early-universe conditions.
The findings will be published in the Monthly Notices of the Royal Astronomical Society.

History

Historical Context

The mapping of the Milky Way has evolved significantly since William Herschel's 1785 diagram, which positioned the Sun near its center. In 2012, astronomers released a comprehensive map revealing its spiral structure, aided by the European Southern Observatory's Very Large Telescope and over 100 scientists. This foundational work enhances our understanding of star formation and cosmic evolution, particularly around the supermassive black hole Sagittarius A*.

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Story summary

Researchers have unveiled the largest, detailed map of gas clouds at the Milky Way's center.
The map was made with the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile and spans 650 light-years.
It reveals structures around Sagittarius A* in the Central Molecular Zone, key for star formation.
ACES involved over 160 scientists and seeks early-universe conditions.
The findings will be published in the Monthly Notices of the Royal Astronomical Society.

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