This episode of Astronomy Daily covers some of the biggest mysteries that continue to perplex astronomers, like the nature of dark energy and matter, the source of cosmic rays, and the bizarre characteristics of our solar system. Host Tim Gibbs walks through a list of eight enduring astronomical puzzles that science has yet to solve. He then discusses new research suggesting that dwarf planet Eris has a squishy, malleable surface more like cheese than rock. The episode concludes with AI assistant Hallie presenting space news about a theory to unite quantum physics and general relativity and celebrating 25 years of operations aboard the International Space Station. Tune in for insights on the cosmos' unsolved mysteries!
