- Astro and Planetary Science
- Planetary Science and Exploration
- Space Exploration and Technology
- Spacecraft and Cryogenic Technologies
- Stellar, planetary, and galactic studies
- Spacecraft Dynamics and Control
- Aerospace Engineering and Energy Systems
- Isotope Analysis in Ecology
- Solar and Space Plasma Dynamics
- Space Satellite Systems and Control
- Spaceflight effects on biology
- Astrophysics and Star Formation Studies
- Spacecraft Design and Technology
- Geomagnetism and Paleomagnetism Studies
- Distributed systems and fault tolerance
- Space Science and Extraterrestrial Life
- Space exploration and regulation
- Technology Assessment and Management
- Graphite, nuclear technology, radiation studies
- Economic and Technological Developments in Russia
- Engineering and Test Systems
- Real-time simulation and control systems
- Scientific Computing and Data Management
- Cryospheric studies and observations
- Winter Sports Injuries and Performance
California Institute of Technology
2007-2021
Jet Propulsion Laboratory
2010-2021
University of Central Florida
2021
Colorado School of Mines
2021
Massachusetts Institute of Technology
2021
Lunar and Planetary Institute
2021
Sorbonne Université
2021
Centre National de la Recherche Scientifique
2021
Auburn University
2021
Laboratoire de Planétologie et Géosciences
2017
Enceladus is one of the most intriguing bodies in solar system. In addition to having brightest and youngest surfaces, this small Saturnian moon was recently discovered have a plume erupting from its south polar terrain global subsurface ocean. The Cassini Mission organics nitrogen-bearing molecules plume, as well salts silicates that strongly suggest ocean water contact with rocky core. However, Cassini's instruments lack sufficient resolution mass range determine if these are biotic...
We describe a mission concept for stand-alone Titan airplane mission: Aerial Vehicle In-situ and Airborne Reconnaissance (AVIATR). With independent delivery direct-to-Earth communications, AVIATR could contribute to science either alone or as part of sustained Exploration Program. As focused mission, we have envisioned it would concentrate on the that an can do best: exploration Titan's global diversity. focus surface geology/hydrology lower-atmospheric structure dynamics. carefully chosen...
A performance analysis for aerocapture at Uranus and Neptune is presented considers entry corridor width, peak deceleration, heat rate, total load, the effect of postcapture orbit on design parameters. Aerocapture mass benefit vs chemical capture also quantified. Design relationships are found that can be used in flight system sizing future studies involving aerocapture. Results obtained interplanetary trajectories launch years from 2025 to 2036, including both high arrival . The results...
Abstract We present a White Paper with science theme concept of ocean world evolution and habitability proposed in response to ESA’s Voyage 2050 Call focus on Titan Enceladus the Saturn system. Ocean worlds outer Solar System that possess subsurface liquid water oceans are considered be prime targets for extra-terrestrial life offer windows into habitability. The Cassini-Huygens mission system (2004–2017) revealed its organic-rich evolving terrestrial features active aqueous environment...
Current analysis of data streamed back to Earth by the Cassini spacecraft features Titan as one most exciting places in solar system. NASA centers and universities around US, well European Space Agency, are studying possibility sending, part next mission this giant moon Saturn, a hot-air balloon (Montgolfier-type) for further more in-depth exploration. The basic idea would be design reliable, semi-autonomous, yet cheap Montgolfier capable using continuous flow waste heat from power source...
Titan is a high priority for exploration, as recommended by NASA's 2006 Solar System Exploration (SSE) Roadmap, 2003 National Research Council (NRC) Decadal Survey and ESA's Cosmic Vision Program Themes. Recent revolutionary Cassini-Huygens discoveries have dramatically escalated interest in the next scientific target outer System. Results of this study documented TSSM Final Report Saturn Mission (TSSM) NASA/ESA Joint Summary demonstrates that an exciting explores two worlds intense...
Recent studies have proposed the use of a hot-air (Montgolfière) balloon for possible exploration Titan, Mars, and Venus. One NASA's Outer Planet Flagship mission concepts is Titan Saturn System Mission, which would be joint NASA-ESA partnership that plans to employ Montgolfière along with lake lander an orbiter. This circle investigating how operate as system determining far prebiotic chemistry has developed. paper provides new method analyze global path planning balloons on Titan. The main...
Many advancements in planetary science are achieved by seizing upon the opportunity created rare natural events (e.g. comet Shoemaker-Levy 9 Jupiter impact; 1994) and planned physical interactions Deep Impact into Tempel 1; 2005). A forthcoming to seize a “experiment” occurs on April 13, 2029 with unprecedentedly close Earth encounter large 340m asteroid (99942) Apophis. On that date, nature is performing of subjecting body Apophis Earth’s tidal torques as it approaches within 31,000 km...