PhysicsWhat would happen if you got sucked into a black hole? From wormhole passages to white hole escape routes, no one knows for certain what lurks beyond a black hole’s event horizon – so choose your own unsettling fate Features
SpaceNASA's method of paying for its giant rocket belongs in the Apollo era Contracts that leave NASA meeting all the extra development costs for its Space Launch System make no sense when firms like SpaceX offer fixed-price flights Leader