RE: The discovery of quasars

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The discovery of quasars

in steemstem •  7 years ago  (edited)

Edit: I removed my vote: the start of this article has been plagiarised from:

https://www.taringa.net/posts/ciencia-educacion/17881827/Los-fenomenos-mas-impresionantes-del-universo.html .

I invite others to do the same.

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