String theory is perhaps the most high-profile candidate for what physicists call a theory of everything – a single mathematical framework capable of describing the entirety of the known universe.

Last month, the Dark Energy Spectroscopic Instrument (DESI) collective reported that dark energy is evolving—specifically weakening—and it could help provide the first observational evidence of string ...

While a new preprint reports that cosmological models using the string theory framework account for this weakening of dark matter, some physicists aren’t convinced that DESI’s data alone ...