Weak lensing by large scale structure
Weak lensing by large scale structure
Weak lensing by large scale structure
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What is dark energy?<br />
The hardest thing of all is to find a black cat in a dark room,<br />
especially if there is no cat - Confucius<br />
Is it a cosmological constant or a dynamic field?<br />
Or is there a problem with General Relativity?<br />
We lack a theoretical framework that can explain<br />
the observations. Observational constraints are<br />
needed to make progress.
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