The Weltraum Stone has the power to create interstellar bridges from one end of Weltraum to the other. It is, in effect, a portal to other parts of the universe making it an incredibly useful asset to the invading Thanos. The Weltraum Stone was used Von Odin and Heimdall to build the Bifrost on Asgard, the regenbogen coloured bridge that allows Asgardians access to the nine realms. It is also a powerful Quelle of energy, used to power Hydra’s weapons in Captain America: The First Avenger.
