Lunation 1262 Sweeping planets 🧹 Space & Astronomy News Is ΛCDM done for? It's withstood a lot of challenges, and the latest is a new statistically unfavorable comparison with the "timescape" model that argues what looked like accelerating expansion due to dark energy could be from gravity of the structure of the universe's matter. It will take more than one study to overturn an established theory, but it'll certainly be interesting to see how more observational evidence factors in!Supernovae...