Dr. John Grunsfeld, NASA Associate Administrator of Science and a former astronaut with five spaceflights to his name, invites you to relive one of the most remarkable missions in modern space exploration — the 2009 space shuttle Atlantismission to upgrade and repair the Hubble Space Telescope. As a veteran astronaut and an accomplished astrophysicist, Grunsfeld offers a firsthand account of the intricate and high-stakes work required to extend the life of one of humanity’s most iconic scientific instruments. From the adrenaline-pumping sensation of lift-off to the awe-inspiring experience of orbiting Earth, he shares what it’s like to live and work aboard the shuttle, conducting spacewalks and performing delicate repairs against the vast backdrop of the cosmos. His story provides a rare glimpse into the perseverance, teamwork, and technological brilliance that make such missions possible, offering an unforgettable perspective on our quest to unlock the mysteries of the universe.