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We know that the structures that it forms cannot be too complex because otherwise we would detect them through microlensing. What can happen is that the struct
by antognini 11y ago
We know that the structures that it forms cannot be too complex because otherwise we would detect them through microlensing. What can happen is that the structure would pass in front of the star and gravitationally lens the light of the background star around it to make it temporarily appear brighter. Surveys looking for these events have found that the vast majority of dark matter cannot be in these very dense structures. So dark matter life seems to be ruled out.
- SomeStupidPoint 11y agoI'm about 1m radius; a bacterium is 1um in radius; our sun is 700,000,000m in radius. So it's nearly a billion times my radius, and something like a thousand trillion times the radius of a bacterium. I don't believe we can't detect anything but purely dark matter planets passing in front of stars, and thus we can't rule out "life", only "planets". I also don't believe our theory is sufficient to distinguish "generic cloud of dark matter" and "cloud of dark matter in 'organic chemical' analogs", particularly because of our lack of sensitive gravitational measurements to directly test.