Post by cjm on Mar 29, 2018 8:02:16 GMT
Astronomers find the 'impossible': a galaxy without dark matter
PARIS (AFP) -
Stupefied astronomers on Wednesday unveiled the first and only known galaxy without dark matter, the invisible and poorly-understood substance thought to make up a quarter of the Universe.
The discovery could revise or even upend theories of how galaxies are formed, they reported in the journal Nature.
Stupefied astronomers on Wednesday unveiled the first and only known galaxy without dark matter, the invisible and poorly-understood substance thought to make up a quarter of the Universe.
The discovery could revise or even upend theories of how galaxies are formed, they reported in the journal Nature.