Galactic Bridge
![Artist's impression of hydrogen gas connecting M33 and M31](https://public.nrao.edu/wp-content/uploads/2017/03/M31_M33_bridge.jpg)
An artist’s impression of the enormous bridge of hydrogen that spans the space between our neighboring galaxies Andromeda and Triangulum. The bridge was discovered using the Robert C. Byrd Green Bank Telescope (GBT) in West Virginia.
Credit: B. Saxton, NRAO/AUI/NSF
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