As advanced in-space propulsion moves from science fiction to reality, the Variable Specific Impulse Magnetoplasma Rocket, or VASIMR engine, is a leading contender for making 'Mars in a month' a possibility. A paradigm shift in space transportation, this book is an in-depth and compelling story co-written by its inventor. It traces the riveting history of the development of the VASIMR engine. This landmark technology is grounded in concepts of advanced plasma physics. It cross-pollinates ideas and disciplines to offer a new, practical, and sustainable solution for in-space transportation beyond low Earth orbit in the decades to come. Invented by the co-holder of the world's spaceflight record, astronaut Franklin Chang Díaz, the VASIMR engine is developed by Ad Astra Rocket Company in its Texas facilities with NASA as part of the NextSTEP VASIMR partnership. With adequate funding, the first spaceflight of the VASIMR engine is imminent. Plasma rockets feature exhaust velocities far above those achievable by conventional chemical rockets. The VASIMR engine is the most advanced high-power plasma propulsion system operating in the world today and it may place long, fast interplanetary journeys withinour reach in the near future.

Franklin Chang Díaz was born April 5, 1950, in San José, Costa Rica, to the late Mr. Ramón A. Chang Morales and Mrs. María Eugenia Díaz Romero. At the age of 18, having completed his secondary education at Colegio de La Salle in Costa Rica, he left his family for the United States to pursue his dream of becoming a rocket scientist and an astronaut.Arriving in Hartford Connecticut in the fall of 1968 with $50 dollars in his pocket and speaking no English, he stayed with relatives, enrolled at Hartford Public High School where he learned English and graduated again in the spring of 1969. That year he also earned a scholarship to the University of Connecticut.While his formal college training led him to a BS in Mechanical Engineering, his four years as a student research assistant at the university's physics laboratories provided him with his early skills as an experimental physicist. Engineering and physics were his passion but also the correct skill mix for his chosen career in space. However, two important events affected his path after graduation: the early cancellation of the Apollo Moon program, which left thousands of space engineers out of work, eliminating opportunities in that field and, the global energy crisis, resulting from the I973 oil embargo by the Organization of Petroleum Exporting Countries (OPEC). The latter provided a boost to new research in energy.Confident that things would ultimately change at NASA, he entered graduate school at MIT in the field of plasma physics and controlled fusion. His research involved him heavily in the US Controlled Thermonuclear Fusion Program, managed then by the US Atomic Energy Commission. His doctoral thesis studied the conceptual design and operation of future reactors, capable of harnessing fusion power. He received his doctorate degree in 1977 and in that same year, he became a US citizen.After MIT, Dr. Chang Díaz joined the technical staff of the Charles Stark Draper Laboratory in Cambridge, MA, where he continued his research in fusion. In that year, the Space Shuttle Enterprise made its first successful atmospheric test flight and re-energized the moribund US Space Program. Following this success, in 1977, NASA issued a nationwide call for a new group of astronauts for the Space Shuttle Program. In addition to US citizenship and in contrast to earlier such announcements in the 1960s, the qualification requirements also included an advanced scientific degree. Dr. Chang Díaz was ready.Rejected on his first application to the Astronaut Program in 1977, he tried again in a second call in 1979. This time, successfully, becoming, in May of 1980, one of 19 astronaut candidates selected by NASA from a pool of more than 3,000 applicants and the first naturalized citizen from Latin America to be so chosen.While undergoing astronaut training, Dr. Chang Díaz supported functions at the Johnson and Kennedy space centers and served as capsule communicator (CAPCOM) in Houston's Mission Control. In 1985 he led the astronaut shuttle support team at the Kennedy Space Center. During his training, Dr. Chang Díaz logged over 1,800 hours of atmospheric flight time, including 1,500 hours in high performance jet aircraft.Dr. Chang Díaz achieved his dream of space flight on January 12, 1986 on board the Space Shuttle Columbia on mission STS 61-C. The 6-day mission deployed the SATCOM KU satellite and conducted multiple scientific experiments. After 96 orbits of the Earth, Columbia made a successful night landing at Edwards Air Force Base in California's Mohave dessert.After a nearly 3-year hiatus, following the Challenger disaster of January 28, 1986, Dr. Chang Díaz flew a (world) record 6 more space missions, which contributed to major US space accomplishments, including the successful deployment of the Galileo spacecraft to Jupiter, the operation of the Alpha Magnetic Spectrometer, a major i

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