SpaceWormhole entanglement solves black hole paradox A new kind of wormhole may resolve whether you'd be crushed or burned if you fell in a black hole, which could in turn lead to a theory of quantum gravity ¿ìè¶ÌÊÓÆµ
PhysicsIron nanocrystal shape-shifts to get out of a jam Tiny metal crystals have been glimpsed taking themselves apart to squeeze through tight spots in nanotubes, without melting or compressing ¿ìè¶ÌÊÓÆµ