Stellar streams are revealing their secrets
Feb 06, 2022
2 minutes
■ GOVERT SCHILLING
precisely mapped out 12 stellar streams in and around the Milky Way. These ribbon-like structures of stars moving in a coherent fashion are the remains of satellite galaxies or globular clusters ripped apart by our galaxy’s tidal forces. Tracking their 3D positions and motions will eventually help to chart the distribution
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