Physicists say they've figured out how spacecraft could make it through a wormhole. A physical object, such as a person or a spacecraft, could theoretically make it through a wormhole in the centre of a black hole, and maybe even access another universe on the other side, physicists have suggested. In what looks like the logical extension of the plot of Interstellar - where astronauts try to hunt down another universe after the catastrophic effects of climate change destroy Earth - physicists have modelled what would happen to a chair, a scientist, and a spacecraft, if each one ended up inside the spherical wormhole of a black hole. "What we did was to reconsider a fundamental question on the relation between the gravity and the underlying structure of space-time," said one of the team, Diego Rubiera-Garcia from the University of Lisbon in Portugal. "In practical terms, we dropped one assumption that holds in general relativity, but there is no a priori reason for it to hold in