Hubble Traces Dark Matter in Dwarf Galaxy

Hubble’s Dark Matter Study

Hubble analyzes dark matter in the Draco dwarf galaxy using 18 years of stellar motion data.

Understanding Dark Matter

Dark matter, the invisible "glue" of the universe, remains a mystery to astronomers.

Draco Dwarf Galaxy

– Located 250,000 light-years from Earth, Draco is a small, spheroidal galaxy. – 

Observational Technique

Astronomers measured stars' movements using Hubble’s extensive archival data.

3D Map Creation

Combining data on stellar motions, they built a precise 3D map of Draco.

New Cast Members

Findings align with a cusp-like dark matter structure, as predicted by cosmological models.

Methodology

Researchers used Doppler Effect and proper motion data to analyze stellar dynamics.

Creator Insights

The study spanned nearly two decades, a testament to Hubble's longevity.

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