NEW YORK (AP) — Elon Musk is joining his space exploration and artificial intelligence ventures into a single company before a massive planned initial public offering for the business later this year. His rocket venture, SpaceX, announced on Monday that it had bought xAI in an effort to help the world’s richest man dominate the rocket and artificial intelligence businesses. The deal will combine several of his offerings, including his AI chatbot Grok , his satellite communications company