A5003579451- Astro and Planetary Science
- Planetary Science and Exploration
- Space Satellite Systems and Control
- Spacecraft Dynamics and Control
- Spacecraft Design and Technology
- Spacecraft and Cryogenic Technologies
- Distributed systems and fault tolerance
- Modular Robots and Swarm Intelligence
- Robotic Path Planning Algorithms
- Spaceflight effects on biology
- Space Exploration and Technology
- Atmospheric and Environmental Gas Dynamics
- Isotope Analysis in Ecology
- Advanced Memory and Neural Computing
- Atmospheric Ozone and Climate
- Robotics and Sensor-Based Localization
- Stellar, planetary, and galactic studies
- Inertial Sensor and Navigation
- Neural Networks and Reservoir Computing
- Air Quality Monitoring and Forecasting
- Satellite Communication Systems
- Geophysics and Gravity Measurements
- Opportunistic and Delay-Tolerant Networks
- Robotic Locomotion and Control
- Space exploration and regulation
University of Arizona
2018-2023
Planet Biotechnology (United States)
2022-2023
SpaceX (United States)
2019-2020
Arizona State University
2017
Jet Propulsion Laboratory
2017
Abstract Linking meteorites to source regions in the main asteroid belt is important for understanding conditions under which their parent bodies formed. Ordinary chondrites are most abundant class of on Earth, totaling 86% all collected samples. Some S-type asteroids/families have been proposed as sources three different (H, L, and LL) types ordinary with Hebe, Agnia, Merxia, Koronis families being H chondrites, Gefion H/L Flora family LL chondrites. However, composition meteorite affinity...
Missions to the Moon are actively being developed for its scientific and engineering values. The Lunar Exploration Analysis Group (LEAG) has identified at least twenty enabling enhancing goals fulfill existing lunar exploration Strategic Knowledge Gaps (SKG). Several of these will require multi-asset missions surface involving human machine interaction, as well access a ground station on Earth. Therefore, communication constellation deployed around moon serve crucial technology such...
Starting in 2023, the Carbon Mapper public-private partnership will launch two imaging spectrometers into low earth orbit as first demonstration satellites for a larger, emerging constellation. This mission is critical collaboration between several partners including Planet, Mapper, Arizona State University, NASA’s Jet Propulsion Laboratory, University of Arizona, High Tide Foundation, California Air Resources Board, and Rocky Mountain Institute. hyperspectral constellation complement...
The next frontier in space exploration involves visiting some of the 2 million small bodies scattered throughout solar system. However, these missions are expected to be challenging due surface irregularities and very low gravity, which makes steps like getting into orbit complex. For reasons, reconnaissance is crucial for small-body before taking on ambitious orbital, surface, sample-return missions. Our previous work developed IDEAS, an automated design software mission development using...
CubeSats and small satellites are emerging as low-cost tools to perform astronomy, exoplanet searches earth observation. These can be dedicated pointing at targets for weeks or months a time. This is typically not possible on larger missions where usage shared. Current use reaction wheels magneto-torquers control attitude. However, these actuators induce jitter due various sources. In this work, we introduce new class of that exploit radiometric forces induced by gasses surface with thermal...
Planetary bodies such as asteroids, comets, and planetary moons are high-value science targets they hold important information about the formation evolution of our solar system. However, due to their low-gravity, variable sizes shapes, dedicated orbiting spacecraft missions around these target is difficult. Therefore, many observed during flyby encounters, consequently, mapping coverage body limited. In this work, we propose use a swarm provide complete surface maps close encounter flyby....
The exploration of small bodies in the Solar System is a high priority planetary science. Asteroids, comets, and moons yield important information about evolution System. Additionally, they could provide resources for future space economy. While much research has gone into exploring asteroids dedicated spacecraft missions to are few far between. There three fundamental challenges mission moons: first challenge that spheres influence most (except Earth) and, many cases, virtually absent....
Exploration of small bodies brings insight to the origins life, Earth, and solar system. However, attempting surface missions small-bodies with inadequate gravity field information is prone high-risk failure. Spacecraft flybys can be a viable approach perform an initial reconnaissance before mission deployed. The challenge that they are time coverage limited thus providing only glimpse target. These disadvantages overcome using swarm approach. While swarms important platforms for small-body...
Current spacecraft need to launch with all of their required fuel for travel. This limits the system performance, payload capacity, and mission flexibility. One compelling alternative is perform In-Situ Resource Utilization (ISRU) by extracting from small bodies in local space such as asteroids or satellites. Compared Moon Mars, microgravity on an asteroid demands a fraction energy digging accessing hydrated regolith just below surface. Previous excavation efforts have focused discrete...
Wheeled ground robots are limited from exploring extreme environments such as caves, lava tubes and skylights. Small that can utilize unconventional mobility through hopping, flying or rolling overcome these limitations. Mul-tiple operating a team offer significant benefits over single large ro-bot, they not prone to single-point failure, enable distributed command control execution of tasks in parallel. These complement rovers landers, helping explore inaccessible sites, obtaining samples...
Small-satellites are emerging as low-cost tools for performing science and exploration in deep space. These new class of space systems exploit the latest advances miniaturization electronics, computer hardware, sensors, power communication technologies to promise reduced launch-cost development cadence. small-satellites offer best option yet explore some 17,000 Near-Earth Asteroids (NEA) nearly 740,000 Main-Belt asteroids found. The these can give us insight into formation solar-system,...
Understanding the physics of small bodies such as asteroids, comets, and planetary moons will help us understand formation solar system, also provide with resources for a future space economy. Due to these reasons, missions are actively being pursued. However, surfaces contain unpredictable interesting features craters, dust, granular matter, which need be observed carefully before lander mission is even considered. This presents surveillance spacecraft observe surface where exist. While...
The application of GNC devices on small robots is a game-changer that enables these to be mobile low-gravity planetary surfaces and bodies. Use reaction wheels roll, hop, summersault rest precarious/sloped would otherwise not possible with conven-tional wheeled robots. We are extending this technology enable climb off-world canyons, cliffs caves. A single robot may slip fall, however, multirobot system can work cooperatively by being interlinked using spring-tethers much like team...
Exploration of asteroids and small-bodies can provide valuable insight into the origins solar system, Earth building blocks life. However, low-gravity unknown surface conditions presents a daunting challenge for exploration, manipulation resource processing. This has resulted in loss several landers or shortened missions. Fundamental studies are required to obtain better readings material properties physical models these small bodies. The Asteroid Origins Satellite 1 (AOSAT 1) is CubeSat...
The wide availability of Commercial Off-The-Shelf (COTS) electronics that can withstand Low Earth Orbit conditions has opened avenue for deployment CubeSats and small-satellites. thanks to their low developmental launch costs offer new opportunities rapidly demonstrating on-orbit surveillance capabilities. In our earlier work, we proposed development SWIMSat (Space based Wide-angle Imaging Meteors) a 3U CubeSat demonstrator is designed observe illuminated objects entering the Earth's...
Earth is constantly being bombarded with material from space. Most of the natural end up dust grains that litter surface Earth, but larger bodies are known to impact every few decades. The most recent large was Chelyabinsk which set off a 500-kiloton explosion 40 times Hiroshima nuclear explosion. Apart meteors, there growing threat space assets deorbiting. With these impending threats, it critical have constellation satellites autonomously lookout for meteors and reentering debris. By using...