Tag: Protogalaxy

The Beginnings of Galaxy Clusters: Proto-Clusters Finally Seen!

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The deeper we peer through the cosmos, the more we are looking into the distant past.  Light from other galaxies takes millions of years to reach us, and so when that light has finally arrived at Earth, it is millions of years old, a snapshot in time of the distant galaxy.  The furthest we can see is so far back in the history of the universe, that galaxies haven’t even formed yet.  As we look at the large-scale structure of the Universe, we see it filled with a cosmic web of galaxy clusters, containing tens of thousands of galaxies each....

Tiny Distant Globular Cluster Discovered

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It’s not often that we find new star clusters within our own Galaxy.  Technology has been good enough to see the stars in the Milky Way for decades, and the grunt work in identifying and cataloguing local clusters is more or less finished, but occasionally we get lucky. A tiny and extremely distant globular star cluster has been found in the outskirts of the far side of our home galaxy.  Currently named Kim 2, it pales in comparison to the other 150 Milky Way globular clusters, containing 10-20 times fewer stars and having less than half the stellar density. The...