Regulatory Approval Challenges: Obtaining and maintaining necessary governmental licenses and approvals for their space missions is complex, time-consuming, and subject to change, potentially causing significant delays or preventing operations.

Technological Development and Reliability Risks: Their core business relies on developing and deploying new in-space transportation and service technologies, which may encounter unexpected technical hurdles, delays, or reliability issues that could impact service delivery.

Customer Adoption and Market Demand Uncertainty: The market for in-space infrastructure services is still emerging, and there is no guarantee that Momentus will secure sufficient customer contracts or that the market will develop as quickly or extensively as anticipated.