- Scientists have discovered the remains of an ancient “fossil galaxy” hiding inside of our own Milky Way.
- The galaxy is what’s left of a very old galaxy that collided with our own galaxy a long time ago, scientists think.
- The galaxy was identified by spotting old stars with different makeup deep within the Milky Way.
Understanding how galaxies are born, grow, and die is essential to better grasping how the universe itself works. As for our own Milky Way, we know quite a bit about it, but not nearly enough to say with certainty how it formed, and certainly not enough to know how long it took to grow to its current state.
Now, researchers using data from the Sloan Digital Sky Survey’s Apache Point Observatory Galactic Evolution Experiment (wow, that’s a mouthful) say they’ve uncovered the remains of an ancient “fossil galaxy” that may have contributed greatly to the growth of the Milky Way.
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A ‘fossil galaxy’ was hiding in plain sight within the Milky Way originally appeared on BGR.com on Fri, 20 Nov 2020 at 22:25:55 EDT. Please see our terms for use of feeds.
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