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IT’S NOT JUST IN YOUR MIND!

Hubble’s view of a few thousand of the Abell 1689 galaxy cluster

A new image from NASA’s Hubble Space Telescope shows an enormous collection of galaxies and star clusters in stunning detail.

Galaxy Cluster Abell 1689

Galaxy Cluster Abell 1689

Hubble spied 10,000 or so of the estimated 160,000 globular star groupings thought to reside in the huge galaxy cluster Abell 1689, which lies about 2.25 billion light-years away from Earth. For comparison, our own Milky Way galaxy has only about 150 globular clusters, which are spherical clumps of old stars tightly bound by gravity.

The telescope’s new observations — which focused on the center of Abell 1689 and incorporated both visible and infrared data — could help shine a light on dark matter in the galaxy cluster’s region. Dark matter is a mysterious substance believed to make up much of the universe but which can only be seen through its effects on other objects. ….

Based on the new Hubble observations, astronomers estimate that Abell 1689 has 160,000 of these clusters in a stretch of 2.4 million light-years.

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