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Hubble completes the largest galactic mosaic of all-time
The full extent of the Andromeda galaxy, the nearest large galaxy to our own, has been entirely imaged with Hubble's exquisite cameras.
Now, here in 2025, they’ve extended that survey to the southern half of Andromeda and completed our largest galactic mosaic ever: with more than 600 overlapping snapshots, in a 2.5+ billion pixel image. In the future, improved observations and superior observatories may help us solve the scientific mysteries of the origin of a variety of features within the Milky Way, including lobes, bubbles, and sprites. Credit: NASA; ESA; Z. Levay and R. van der Marel, STScI; T. Hallas, and A. Mellinger Mostly Mute Monday tells an astronomical story in images, visuals, and no more than 200 words.
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