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Hubble solves merger mystery from Milky Way's early years

Hubble solves merger mystery from Milky Way's early years
Phys.org Monday 17 August 2026, 22:20 UTC 1 min read
Key Points

Our home galaxy, the Milky Way, grew to its current size in part by consuming smaller galaxies. Now, new data from NASA's Hubble Space Telescope show definitive evidence of a dwarf galaxy merging with the young Milky Way in the earliest phases of its evolution. This finding extends our knowledge of our galaxy's history 1.8 billion years farther back in time than before.

Our home galaxy, the Milky Way, grew to its current size in part by consuming smaller galaxies. Now, new data from NASA's Hubble Space Telescope show definitive evidence of a dwarf galaxy merging with the young Milky Way in the earliest phases of its evolution. This finding extends our knowledge of our galaxy's history 1.8 billion years farther back in time than before. The results are published in the journal Nature Astronomy.
Hubble (ORG) Milky Way's (PERSON) NASA (ORG) Hubble Space Telescope (LOCATION)
Originally published by Phys.org Read original →

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