Astronomers Reach New Milestone: Farthest Galaxy Ever Measured

The above photo, courtesy of the New York Times, may not look like much, but it represents an amazing achievement in the field of astronomy and in our understanding of the universe. Here’s more from the Times:

The [pictured] galaxy, more than a few billion light-years on the other side of the northern constellation Boötes, is one of the most massive and brightest in the early universe and goes by the name of EGS-zs8-1. It flowered into stardom only 670 million years after the Big Bang.

The light from that galaxy has taken 13 billion years to reach telescopes on Earth. By now, however, since the universe has continued to expand during that time, the galaxy is about 30 billion light-years away, according to standard cosmological calculations.

The new measurements allow astronomers to see the galaxy in its infancy. Despite its relative youth, however, it is already about one-sixth as massive as the Milky Way, which is 10 billion years old. And it is getting bigger, making stars 80 times faster than the Milky Way is making them today. The discovery was reported in The Astrophysical Journal by Pascal Oesch of Yale University and his colleagues.

Imagine what more awaits once even more powerful tools like the James Webb Space Telescope and the Thirty Meter Telescope come into being.

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