Did Astronomers Just Find Cold Dark Matter?

Did Astronomers Just Find Cold Dark Matter?
N.R.Fuller/National Science Foundation via AP

So here's something intriguing: an observational signature from the very first stars in the universe, which formed about 180 million years after the Big Bang (a little over one percent of the current age of the universe). This is exciting all by itself, and well worthy of our attention; getting data about the earliest generation of stars is notoriously difficult, and any morsel of information we can scrounge up is very helpful in putting together a picture of how the universe evolved from a relatively smooth plasma to the lumpy riot of stars and galaxies we see today.

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