AST SpaceMobile (ASTS) is a company aiming to build a space-based cellular broadband network directly accessible by standard mobile phones without requiring specialized hardware. Their goal is to eliminate cellular dead zones and provide connectivity to billions of people globally. The company's stock is considered high-risk, high-reward due to the ambitious and technologically challenging nature of their project. While they have launched test satellites and demonstrated some connectivity, the commercial viability and long-term success of their technology remain unproven. Investors should be aware that the stock price is highly volatile and heavily influenced by news and developments related to their satellite deployment and technological advancements.