New estimates of the composition of intergalactic space

[PB666]

New low effect thread

http://www.universal-sci.com/headlines/2015/10/26/suzaku-finds-common-chemical-makeup-at-largest-cosmic-scales

For those here who can look above the superficialty of the link, think about what might be the importance of xrays specifcally emmitted by heavier elements in intergalactic space and thier prevalance billions of years ago. Does this change at all the 'mass' equation, what about dark matter, is this 'dark' matter suddenly made visible (how much does this contibute to the mass of intergalactic space).

As these elements relatively increase, is it easier to form galaxies, smaller galaxies and dimmer stars that are harder to detect. If we get to the point that the elements are dilute will they form jupiter like objects that are virtually invisible at our distance?

Every time you see one of these links you should be able to form at least a couple of questions in your head. If 2015 TB145 passes close to earth how good of a target is it for exploration or exploitation?