Story perspectives

87 New Stellar Streams Discovered in Milky Way

4/5/2026

Summary

Story summary

87 new stellar stream candidates were identified in the Milky Way by the StarStream algorithm, developed by Yingtian 'Bill' Chen and his team, using ESA's Gaia data.
The discovery advances understanding of the Milky Way's evolution and dark matter distribution.
Many streams differ from expectations, being shorter or misaligned.
Not all candidates will be confirmed because of background contamination, but future telescope observations will verify them.

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Story summary

87 new stellar stream candidates were identified in the Milky Way by the StarStream algorithm, developed by Yingtian 'Bill' Chen and his team, using ESA's Gaia data.
The discovery advances understanding of the Milky Way's evolution and dark matter distribution.
Many streams differ from expectations, being shorter or misaligned.
Not all candidates will be confirmed because of background contamination, but future telescope observations will verify them.