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Space Telescope Science Institute
stsci.edu
did:plc:mulpjci2cuglde3nw5g3q3bs
Hubble has solved the merger mystery from our Milky Way galaxy’s early years! Astronomers found strong evidence for a massive merger with another galaxy 1.8 billion years earlier than the oldest previously known significant merger. (1/5) 🧵 🔭 ☄️
2026-08-19T14:02:08.472Z