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Cosmic breadcrumb: first globular-cluster stellar stream spotted beyond the Milky Way

1 min read
Source: CNN
Cosmic breadcrumb: first globular-cluster stellar stream spotted beyond the Milky Way
Photo: CNN
TL;DR

Astronomers discovered the first globular-cluster stellar stream outside the Milky Way, in a galaxy about 115 million light-years away, by analyzing archival data from the Hubble Space Telescope. The faint stellar trail reveals the host galaxy's gravitational field and total mass, offering a new way to map dark matter and understand how galaxies form and evolve across the universe.

Topics:sciencespace#dark-matter#galaxies#globular-clusters#hubble-space-telescope#space#stellar-streams
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  1. Astronomers use a trail of stars beyond the Milky Way to map a distant galaxy’s dark matter  CNN
  2. Evidence for the first globular cluster stellar stream beyond the Milky Way  Nature
  3. Cosmic breadcrumb trail reveals hidden dark matter  news.northwestern.edu
  4. Stellar stream beyond Milky Way offers new tool to map dark matter  Phys.org
  5. As This Ancient Star Cluster Unravels, a Never-Before-Seen Star Ribbon is Forming Under the Influence of Dark Matter  The Debrief

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