A four-dimensional space used to represent the universe in the theory
of relativity, with three dimensions corresponding to ordinary space
and the fourth to time. Also known as space-time continuum.
(definition at the GPB site).
Scientists find first evidence that many universes exist [ PhysOrg ]
New partcle links dark matter with missing antimatter [ Physics World ]
Twinkling Stars May Reveal Human-Size Wormholes [ Wired Science]
NASA Ames’ Worden reveals DARPA-funded ‘Hundred Year Starship’ program [ Kurzeil AI]