R. A. Beyer
A5036779948- Planetary Science and Exploration
- Astro and Planetary Science
- Space Exploration and Technology
- Geology and Paleoclimatology Research
- Geological and Geochemical Analysis
- Isotope Analysis in Ecology
- Space Science and Extraterrestrial Life
- Aeolian processes and effects
- Stellar, planetary, and galactic studies
- Space Satellite Systems and Control
- Distributed and Parallel Computing Systems
- Satellite Image Processing and Photogrammetry
- Geomagnetism and Paleomagnetism Studies
- Spacecraft and Cryogenic Technologies
- Gamma-ray bursts and supernovae
- 3D Surveying and Cultural Heritage
- Geological Modeling and Analysis
- Robotics and Sensor-Based Localization
- Geophysics and Gravity Measurements
- Space exploration and regulation
- Scientific Computing and Data Management
- Solar and Space Plasma Dynamics
- Computer Graphics and Visualization Techniques
- Advanced Computational Techniques and Applications
- Spaceflight effects on biology
Ames Research Center
2014-2023
Search for Extraterrestrial Intelligence
2014-2023
National Aeronautics and Space Administration
2009-2019
Planetary Systems (United States)
2017
Stanford University
2016
Johns Hopkins University Applied Physics Laboratory
2016
Stinger Ghaffarian Technologies (United States)
2010-2014
Jet Propulsion Laboratory
2014
Astrogeology Science Center
2010
University of Arizona
2003-2005
New Horizons' views of Pluto The flyby and its moon Charon by the Horizons spacecraft generated news coverage around world. Now Stern et al. report first scientific results from high-speed encounter. surface is surprisingly diverse, with large regions differing brightness composition. There ample evidence for ongoing rich geological processes that act to sculpt surface. Charon's similarly complex, numerous relief structures varied coloration. Pluto's atmosphere extensive but less dense than...
The NASA Ames Stereo Pipeline is a suite of free and open source automated geodesy stereogrammetry tools designed for processing stereo images captured from satellites (around Earth other planets), robotic rovers, aerial cameras, historical images, with without accurate camera pose information. It produces cartographic products, including digital terrain models, ortho‐projected 3‐D bundle‐adjusted networks cameras. Pipeline's data products are suitable science analysis, mission planning,...
The New Horizons spacecraft mapped colors and infrared spectra across the encounter hemispheres of Pluto Charon. volatile ices CH$_4$, CO, N$_2$, that dominate Pluto's surface, have complicated spatial distributions resulting from sublimation, condensation, glacial flow acting over seasonal geological timescales. H$_2$O ice "bedrock" is also mapped, with isolated outcrops occurring in a variety settings. surface exhibits complex regional color diversity associated its distinct provinces....
New Horizons unveils the Pluto system In July 2015, spacecraft flew through at high speed, humanity's first close look this enigmatic on outskirts of our solar system. a series papers, team present their analysis encounter data downloaded so far: Moore et al. complex surface features and geology its large moon Charon, including evidence tectonics, glacial flow, possible cryovolcanoes. Grundy analyzed colors chemical compositions surfaces, with ices H 2 O, CH 4 , CO, N NH 3 reddish material...
New Horizons unveils the Pluto system In July 2015, spacecraft flew through at high speed, humanity's first close look this enigmatic on outskirts of our solar system. a series papers, team present their analysis encounter data downloaded so far: Moore et al. complex surface features and geology its large moon Charon, including evidence tectonics, glacial flow, possible cryovolcanoes. Grundy analyzed colors chemical compositions surfaces, with ices H 2 O, CH 4 , CO, N NH 3 reddish material...
Lunar Lobate Scarps Revealed lobate scarps are relatively small-scale landforms that thought to be formed by tectonic thrust faulting. Previously, lunar could only identified clearly in high-resolution Apollo Panoramic Camera images confined the equatorial zone. Now, an analysis Watters et al. (p. 936 ) of returned Reconnaissance Orbiter reveals 14 previously unknown and shows may globally distributed. Their appearance suggests young (less than 1 Ga), possibly during a recent episode global...
The Kuiper Belt is a distant region of the Solar System. On 1 January 2019, New Horizons spacecraft flew close to (486958) 2014 MU69, Cold Classical Object, class objects that have never been heated by Sun and are therefore well preserved since their formation. Here we describe initial results from these encounter observations. MU69 bi-lobed contact binary with flattened shape, discrete geological units, noticeable albedo heterogeneity. However, there little surface color compositional No...
Impact craters on Pluto and Charon Collisions between Solar System bodies produce impact large objects at a rate that depends the population of impacting small bodies. Singer et al. examined its moon Charon. Some regions have had their erased by recent geological processes, but others appear to record 4 billion years impacts. Because are located in Kuiper belt, distribution crater sizes reflects size belt (KBOs). The authors found fewer KBOs than predicted models collision equilibrium,...
The surface of Pluto is more geologically diverse and dynamic than had been expected, but the role its tenuous atmosphere in shaping landscape remains unclear. We describe observations from New Horizons spacecraft regularly spaced, linear ridges whose morphology, distribution, orientation are consistent with being transverse dunes. These located close to mountainous regions orthogonal nearby wind streaks. demonstrate that wavelength dunes (~0.4 1 kilometer) best explained by deposition...
The New Horizons mission has provided resolved measurements of Pluto's moons Styx, Nix, Kerberos, and Hydra. All four are small, with equivalent spherical diameters $\approx$40 km for Nix Hydra ~10 Styx Kerberos. They also highly elongated, maximum to minimum axis ratios $\approx$2. have high albedos ( $\approx$50-90 %) suggestive a water-ice surface composition. Crater densities on imply ages $\gtrsim$ 4 Ga. small rotate much faster than synchronous, rotational poles clustered nearly...
In the first 6 months of Mars Reconnaissance Orbiter's Primary Science Phase, High Resolution Imaging Experiment (HiRISE) camera has returned images sampling diversity volcanic terrains on Mars. While many these features were noted in earlier imaging, they are now seen with unprecedented clarity. We find that some vents produced predominantly effusive products while others generated mostly pyroclastics. Flood lavas emplaced both turbulent and gentle eruptions, producing roofed channels...
Images from the High Resolution Imaging Science Experiment have revealed new details on morphologic and topographic characteristics of slope streaks Mars. Over 1500 HiRISE images were analyzed with 78 unique image sites having streaks. low sun illumination reveal that dark relief where streaked surfaces are lower than their surroundings. Slope often initiate below localized features such as rock outcrops, individual boulders, impact craters. They also abundant in great numbers within blast...
New Horizons unveils the Pluto system In July 2015, spacecraft flew through at high speed, humanity's first close look this enigmatic on outskirts of our solar system. a series papers, team present their analysis encounter data downloaded so far: Moore et al. complex surface features and geology its large moon Charon, including evidence tectonics, glacial flow, possible cryovolcanoes. Grundy analyzed colors chemical compositions surfaces, with ices H 2 O, CH 4 , CO, N NH 3 reddish material...
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...