mercredi 28 mars 2018

Dark matter or no dark matter? That is the question

In 2016, astronomers at Mauna Kea's Keck Observatory and the Gemini North telescope, discovered a distant galaxy composed almost entirely of dark matter...

https://phys.org/news/2016-08-scient...laxy.html#nRlv

Now, that same group of astronomers have discovered another distant galaxy, this time, almost entirely devoid of dark matter

https://phys.org/news/2018-03-dark-galaxy.html#nRlv

I mean, WT actual F? This seems to poke a rather large hole in the current theory of how galaxies form, i.e from blobs of dark matter.

When taken together, what are the implications of these two discoveries?


via International Skeptics Forum https://ift.tt/2pKR4m2

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