SpaceBlue Origin’s latest launch brings it close to sending humans to space The 14 April launch of Blue Origin’s New Shepard rocket may have been the spacecraft’s last test flight before it begins taking passengers to the edge of space News
PhysicsDid time flow in two directions from the big bang, making two futures? Why time only flows forwards is one of the great mysteries of physics. A new idea suggests that it actually went in two ways from the big bang – and, even more radically, that time emerges not from entropy, but from the growth of structure Features