Deletion of Dark fluid

Comment: A Google search in regards to peer reviewed knowledge might not be a suitable test in this case. As long as |notable scientific sources report back, in this case multiple academic journals, then a Google search of popular links might not be an accurate indication of its importance to science and in this case an encyclopaedia
Stance: keep
Cited policy: Wikipedia:Notability (WP:N)

Comment: Notable per sources above, meets , disambiguating between competing concepts under the same name could be in order, if this is an issue, but this is dealt with editing, |not deletion, per deletion policy
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG||WP:ATD)