


Welcome to Truth Guard with Mario Espinosa
Faith, truth, and discovery—these are the pillars of my mission.
As a Christian theologian, apologist, and explorer, I am committed to defending the Gospel, guiding others toward truth, and engaging with the wonders of God’s creation.
Through Truth Guard, I focus on Apologetics and Counter-Cult Evangelism, equipping believers with biblical truth and helping those seeking clarity in their faith. I stand firm in contending for the faith, exposing deception, and encouraging people to experience the saving grace of Jesus Christ.
Yet, my mission also reaches beyond Earth. Inspired by Psalm 19:1—“The heavens declare the glory of God; the skies proclaim the work of His hands”—I founded Providence One, an initiative exploring human resilience, ethics, and performance in extreme environments, including spaceflight and analog missions.
​Providence One is guided by values of service, integrity, and human dignity, it bridges expertise in human factors, organizational systems, and storytelling to translate research into actionable insights and public education. Providence One focuses on crew cohesion, psychological wellbeing, and ethical decision-making, while inspiring curiosity and engagement in STEM and space exploration.
​
Through Providence One, I pursue:
✅ Participating in civilian spaceflight and analog missions as a mission-relevant specialist
✅ Engaging in bioastronautics and human performance research to advance safe and effective spaceflight
✅ Supporting Multiple Sclerosis (MS) research and advocacy, inspired by my wife’s journey
✅ Promoting STEM education, exploration, and public engagement with the human experience of space
Whether through Truth Guard or Providence One, my mission is to serve, lead, and inspire—helping others explore truth in faith while reaching for the stars.
Join me on this journey! Explore my blog, connect on social media, and be part of a conversation that merges faith, truth, and the pursuit of discovery.​





