What observational evidence confirms that mergers recycle matter into new stellar generations?

Answer

Hubble observations revealing blazing stellar nurseries

NASA's Hubble Space Telescope has observed ongoing mergers showing spectacular bursts of creation where gas clouds are collapsing under stress, confirming the recycling of matter into new stars.

What observational evidence confirms that mergers recycle matter into new stellar generations?

#Videos

What Happens When Galaxies Collide? - YouTube

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