In 2025, NASA and its international partners celebrate 25 years of continuous human presence aboard the International Space Station. Since November 2, 2000, more than 290 people from 26 countries have lived and worked aboard the orbiting laboratory, conducting thousands of experiments that have advanced science and technology on Earth and paved the way for Artemis missions to the Moon and future journeys to Mars.\u00a0<\/p>\n
Beyond its role as a science platform, the station has been a bridge\u2014connecting cultures, sparking creativity, and inspiring generations. The memories of Johnson Space Center employees reflect how the orbiting laboratory is not only an engineering marvel but also a deeply human endeavor.\u00a0\u00a0<\/p>\n
Christopher Brown \u2013 Advancing Life Support Systems for Future Exploration<\/strong>\u00a0<\/p>\n As a space station Environmental Control and Life Support System (ECLSS<\/a>) integrator, Christopher Brown\u2019s role has been ensuring astronauts have clean air and water. ECLSS removes carbon dioxide from the air, supplies oxygen for breathing, and recycles wastewater\u2014turning yesterday\u2019s coffee into tomorrow\u2019s coffee. Today, these systems can recover nearly 98% of the water brought to the station<\/a>.\u00a0\u00a0<\/p>\n His proudest memory was commissioning regenerative life support systems and raising a symbolic toast with the crew while on console in mission control. He also helped activate the Water Storage System, saving crew time and improving operations on station. For Brown, these milestones were vital steps toward future long-duration missions beyond Earth.\u00a0<\/p>\n Stephanie Sipila \u2013 The Heart of Microgravity Research<\/strong>\u00a0\u00a0<\/p>\n Stephanie Sipila, now integration manager for NASA\u2019s Extravehicular Activity and Human Surface Mobility Program, began her career as a mechanical and robotic systems instructor for the orbital outpost. Her favorite experiment, Engineered Heart Tissues<\/a>, studies microgravity\u2019s effect on the human heart to help develop new treatments for cardiovascular disease. She recalls NASA astronaut Sunita Williams<\/a> running the Boston Marathon on a treadmill aboard station, becoming the first person to complete the race in space and showing how astronauts stay connected to Earth while living on orbit.\u00a0\u00a0<\/p>\n Sipila also highlights the Spacesuit Art Project<\/a>, an initiative that turned artwork from children with cancer into spacesuits flown to and worn aboard the orbital outpost during live downlinks, connecting science, art, and hope \u2014 and raising awareness of cancer research<\/a> conducted aboard the orbital outpost.\u00a0\u00a0<\/p>\n Liz Warren \u2013 Where Exploration Meets Humanity<\/strong>\u00a0<\/p>\n Space station Associate Chief Scientist Liz Warren has seen firsthand how the Spacesuit Art Project uplifted children on Earth. During Expedition 52, she watched astronaut Jack Fischer wear a suit covered in artwork created by young cancer patients, including his own daughter, a survivor. \u201cIt was incredibly touching to note the power of art and inspiration. Human spaceflight requires fortitude, resilience, and teamwork\u2014so does fighting childhood cancer,\u201d Warren said.\u00a0<\/p>\n