SpacePhysics crunch: Time to rethink cosmic inflation? It promised to iron out all the big bang's problems – but the best theory of our universe's origin has logically self-destructed, argues Max TegmarkFeatures
SpaceLargest structure challenges Einstein's smooth cosmos One-twentieth the diameter of the observable universe, a group of galaxies dents the cherished idea that the cosmos is uniform at large scales ¿ìè¶ÌÊÓÆµ