Dark energy 'doesn't exist' so can't be pushing 'lumpy' Universe apart
>formatting linkSource:
> Royal Astronomical Society
> Summary:
> One of the biggest mysteries in science -- dark energy -- doesn't actually exist,
> according to researchers looking to solve the riddle of how the Universe is expanding.
> For the past 100 years, physicists have generally assumed that the cosmos is growing
> equally in all directions.
> They employed the concept of dark energy as a placeholder to explain unknown physics
> they couldn't understand, but the contentious theory has always had its problems.
> Now a team of physicists and astronomers are challenging the status quo,
> using improved analysis of supernovae light curves to show that the Universe
> is expanding in a more varied, 'lumpier' way.
>
> All about clocks running faster in empty space....
More accurately about clocks running slower in deep gravitational potential wells, but that effect seems to me way too small to account for the apparent acceleration seen in galaxies at ultra high redshift.
The original paper is online here free access (all 24 pages of it):
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Not an easy read. lambdaCDM still fits at least as well...