
In this large celestial mosaic taken by NASA's Spitzer Space Telescope and published in 2019, there's a lot to see, including multiple clusters of stars born from the same dense clumps of gas and dust. via NASA https://ift.tt/3hysgqd
Westerlund 1 is the biggest and closest “super” star cluster to Earth. Data from Chandra and other telescopes are helping astronomers delve...
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