Dark Matter
Posted: Mon Apr 06, 2015 10:06 am
Perhaps someone with a greater understanding can help me out with this one - but -
(putting the observed gravitation lensing aside for one moment)...
The reason for the hypothesis of dark matter is to explain why galaxies have a more uniform rotation that say, our solar system does. (Neptune for example orbiting the sun slower than mercury)
Now the way that I understand mass and gravity to work; there seems to be a fundamental flaw with the current 'type' of dark matter proposed to explain galactic rotation:
If this proposed dark matter indeed exists, then surely it would exist also within our own solar system and therefore we should see a more uniform rotation of the planets too and neptune would orbit at the same rate as mercury due to dark matter also within our own solar system?
(putting the observed gravitation lensing aside for one moment)...
The reason for the hypothesis of dark matter is to explain why galaxies have a more uniform rotation that say, our solar system does. (Neptune for example orbiting the sun slower than mercury)
Now the way that I understand mass and gravity to work; there seems to be a fundamental flaw with the current 'type' of dark matter proposed to explain galactic rotation:
If this proposed dark matter indeed exists, then surely it would exist also within our own solar system and therefore we should see a more uniform rotation of the planets too and neptune would orbit at the same rate as mercury due to dark matter also within our own solar system?