The Globe and Mail reports in its Tuesday edition that Elon Musk said Monday that SpaceX has acquired his artificial-intelligence start-up xAI, combining the rocket-and-satellite company with the maker of the Grok chatbot in a move aimed at unifying Mr. Musk's AI and space ambitions. A Reuters dispatch to The Globe quotes Mr. Musk saying, "This marks not just the next chapter, but the next book in SpaceX and xAI's mission: scaling to make a sentient sun to understand the Universe and extend the light of consciousness to the stars!" The deal represents one of the most ambitious tie-ups in the technology sector yet, combining a space-and-defence contractor with an AI developer whose costs are largely driven by chips, data centres and energy. It could also bolster SpaceX's data centre ambitions as Mr. Musk competes with rivals such as Alphabet's Google, Meta, Amazon-backed Anthropic and OpenAI in the AI sector. The combined company is expected to price shares at $527 each, and would have a valuation of $1.25-trillion (all figures U.S.). Under the merger agreement, xAI would become a wholly owned subsidiary of SpaceX. The space company plans a blockbuster public offering this year that could value it at over $1.5-trillion.