Our clumpy universe
No events today, so instead, an interesting article from Wired Science. Apparently, on very large scales that haven’t previously been measured, the universe appears clumpier than we thought.
The extra lumps could also mean dark energy doesn’t exist at all. Instead, gravity could behave differently on very large scales than it does on smaller scales, meaning Einstein’s theory of general relativity needs an overhaul.
Or it could be that a minor tweak to the theory will predict the kinds of clumps that are seen. I’m looking forward to an update (probably in years to come) and to the comments by any physicists reading this.