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Big Bang's Lithium Problem Gets More Problematic

There's no escape; new measurements show far less lithium than predicted by the big bang, and more fine tuning than would be expected by chance.

Dark Matter Remains Missing

The most sensitive test to date for dark matter in the form of weakly interacting massive particles (WIMPs) has turned up nothing.

Trouble in Cosmologyland

Underneath the veneer of certainty portrayed by TV documentaries about the universe are deep questions and controversies. Some of these briefly appear on publicly-available news stories, only to be covered by new coats of certainty. Are the new veneers fixing the problems or, instead, whitewashing serious weaknesses in current cosmological understanding? Here are some quick looks under the veneer.
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