Multiple web search results report that SpaceX acquired xAI, describing it as a merger or acquisition that aims to create a highly integrated company. The claim about it being the 'world's most valuable private company' and going public this year is specific and not consistently corroborated across the provided snippets, but the core merger/acquisition fact is strongly supported by multiple sources.

Multiple web search results state that the acquisition of xAI by SpaceX is intended to unify Musk's AI and space ambitions, implying the integration of AI into SpaceX's core technological areas, which includes rocketry and space systems.

Web search results confirm the acquisition of xAI by SpaceX occurred recently (mentioning 'Monday' and 'Feb 2'). They also describe the deal as unifying ambitions, which implies integration is ongoing, though the specific detail of xAI operating as a completely separate entity is not confirmed.

Multiple web search results state that Elon Musk has shifted SpaceX's focus from Mars colonization to building a 'self-growing city' on the Moon, while the Wikipedia entry confirms the Mars colonization program is the stated long-term objective.

Web search results mention the lower gravitational pull on the Moon and the potential for deploying data centers in space/on the Moon, supporting the premise of leveraging lower gravity for infrastructure.