Vast Space, an aerospace startup founded by Ripple co-founder Jed McCaleb, has announced its plans for a successor to the International Space Station. The company aims to establish a low Earth orbit laboratory named "Haven-2" that will allow visitors to conduct microgravity research and serve as a destination for NASA to send astronauts as an international partner. Vast Space's long-term vision is to launch the first module of "Haven-2" into space and have it fully operational by 2028.