Revolutionary Concepts for Human Outer Planet Exploration (HOPE)

Troutman, Patrick A.; Bethke, Kristen; Stillwagen, Fred; Caldwell, Darrell L.; Manvi, R.; Strickland, Chris; Krizan, Shawn A.

doi:10.1063/1.1541373

Cited by 22 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Borowski et al [9,10] summarized NASA's research for over one year, which examined the feasibility of the fission propulsion system in the exploration of human extraterrestrial space. NASA designed a "two mode" thermonuclear rocket, bimodal nuclear thermal rocket (BNTR), to propel the vehicle to Callisto [11]. The fission reactor system uses high-temperature uranium dioxide (UO 2 ) in tungsten (W) metal matrix cermet fuel and advanced Brayton power conversion technology to generate electricity [12].…”

Section: General Situation Of Space Propulsionmentioning

confidence: 99%

A Comprehensive Review of Atmosphere-Breathing Electric Propulsion Systems

Zheng

Zhang

et al. 2020

International Journal of Aerospace Engineering

View full text Add to dashboard Cite

To develop the satellites for a low-Earth-orbit environment, atmosphere-breathing electric propulsion (ABEP) systems have become more attractive to researchers in the past decade. The system can use atmospheric molecules as the propellant to provide thrust compensation, which can extend the lifetime of spacecraft (S/C). This comprehensive review reviews the efforts of previous researchers to develop concepts for ABEP systems. Different kinds of space propulsion system are analysed to determine the suitable propulsion for atmosphere-breathing S/C. Further discussion about ABEP systems shows the characteristic of different thrusters. The main performance of the ABEP system of previous studies is summarized, which provides further research avenues in the future. Results show great potential for thrust compensation from atmospheric molecules. However, the current studies show various limitations and are difficult to apply to space. The development of ABEP needs to solve some problems, such as the intake efficiency, ionization power, and electrode corrosion.

show abstract

Section: General Situation Of Space Propulsionmentioning

confidence: 99%

A Comprehensive Review of Atmosphere-Breathing Electric Propulsion Systems

Zheng

Zhang

et al. 2020

International Journal of Aerospace Engineering

View full text Add to dashboard Cite

show abstract

“…Jovian System: Our model predicts that a first human-crewed launch to Jovian space may be possible by the mid-2070s. A more optimistic assessment was assembled by NASA in a 2003 study, which detailed a human-crewed launch to the outermost Galilean moon, Callisto, by the mid-2040s [25]. While the four Galilean moons Io, Europa, Ganymede, and Callisto are the most obvious targets for robotic exploration, only the outermost moon, Callisto, is sufficiently removed from Jupiter's intense radiation fields to consider human exploration and possible colonization within the 21st century.…”

Section: Interpretation Of Selected Missions' Resultsmentioning

confidence: 99%

Avoiding the “Great Filter”: A Projected Timeframe for Human Expansion Off-World

2021

View full text Add to dashboard Cite

A foundational model has been developed based on trends built from empirical data of space exploration and computing power through the first six plus decades of the Space Age, which projects the earliest possible launch dates for human-crewed missions from cis-lunar space to selected Solar System and interstellar destinations. The model uses computational power, expressed as transistors per microprocessor, as a key broadly limiting factor for deep space missions’ reach and complexity. The goal of this analysis is to provide a projected timeframe for humanity to become a multi-world species through off-world colonization, and in so doing all but guarantee the long-term survival of the human race from natural and human-caused calamities that could befall life on Earth. Beginning with the development and deployment of the first nuclear weapons near the end of World War II, humanity entered a ‘Window of Peril’, which will not be safely closed until robust off-world colonies become a reality. Our findings suggest that the first human-crewed missions to land on Mars, selected Asteroid Belt objects, and selected moons of Jupiter and Saturn can occur before the end of the 21st century. Launches of human-crewed interstellar missions to exoplanet destinations within roughly 40 lightyears of the Solar System are seen as possible during the 23rd century and launch of intragalactic missions by the end of the 24th century. An aggressive and sustained space exploration program, which includes colonization, is thus seen as critical to the long-term survival of the human race.

show abstract

“…Jovian System: Our model predicts a first human-crewed launch to Jovian space may be possible by the mid-2070s. A more optimistic assessment was assembled by NASA in a 2003 study which detailed a human-crewed launch to the outermost Galilean moon, Callisto, by the mid-2040s [25]. While the four Galilean moons Io, Europa, Ganymede, and Callisto are the most obvious targets for robotic exploration, only the outermost moon, Callisto, is sufficiently removed from Jupiter's intense radiation fields to consider human exploration and possible colonization within the 21 st century.…”

Section: Marsmentioning

confidence: 99%

Avoiding the “Great Filter”: A Projected Timeframe for Human Expansion Off-World

Jiang

Rosen²,

Fahy

2021

Preprint

View full text Add to dashboard Cite

A foundational model has been developed based on trends built from empirical data of space exploration and computing power through the first six plus decades of the Space Age which projects earliest possible launch dates for human-crewed missions from cis-lunar space to selected Solar System and interstellar destinations. The model uses computational power, expressed as transistors per microprocessor, as a key broadly limiting factor for deep space missions’ reach and complexity. The goal of this analysis is to provide a projected timeframe for humanity to become a multi-world species through off-world colonization, and in so doing all but guarantees the long-term survival of the human race from natural and human-caused calamities that could befall life on Earth. Beginning with the development and deployment of the first nuclear weapons near the end of World War II, humanity entered a ‘Window of Peril’ which will not be safely closed until robust off-world colonies become a reality. Our findings suggest the first human-crewed missions to land on Mars, selected Asteroid Belt objects, and selected moons of Jupiter and Saturn can occur before the end of the 21st century. Launches of human-crewed interstellar missions to exoplanet destinations within roughly 40 lightyears of the Solar System are seen as possible during the 23rd century and launch of intragalactic missions by the end of the 24th century. An aggressive and sustained space exploration program, which includes colonization, is thus seen as critical to the long-term survival of the human race.

show abstract

Revolutionary Concepts for Human Outer Planet Exploration (HOPE)

Cited by 22 publications

References 0 publications

A Comprehensive Review of Atmosphere-Breathing Electric Propulsion Systems

A Comprehensive Review of Atmosphere-Breathing Electric Propulsion Systems

Avoiding the “Great Filter”: A Projected Timeframe for Human Expansion Off-World

Avoiding the “Great Filter”: A Projected Timeframe for Human Expansion Off-World

Contact Info

Product

Resources

About