A5011232501- Astro and Planetary Science
- Planetary Science and Exploration
- Space Exploration and Technology
- Geology and Paleoclimatology Research
- Stellar, planetary, and galactic studies
- Isotope Analysis in Ecology
- Geomagnetism and Paleomagnetism Studies
- Space Science and Extraterrestrial Life
- Aeolian processes and effects
- Geological and Geochemical Analysis
- Atmospheric and Environmental Gas Dynamics
- Astrophysics and Star Formation Studies
- Space Satellite Systems and Control
- Atmospheric Ozone and Climate
- Marine and environmental studies
- Atmospheric chemistry and aerosols
- Geophysics and Gravity Measurements
- Gamma-ray bursts and supernovae
- Spacecraft and Cryogenic Technologies
- Historical Astronomy and Related Studies
- Spaceflight effects on biology
- Methane Hydrates and Related Phenomena
- Astronomical Observations and Instrumentation
- earthquake and tectonic studies
- Spacecraft Design and Technology
Geriatric Research Education and Clinical Center
2023-2024
University of Puget Sound
2023-2024
Cornell University
2013-2023
St. Luke's University Health Network
2023
American College of Surgeons
2023
Amity University
2023
Odyssey House
2022
Fluidigm (United States)
2021
LMU Klinikum
2005-2020
Bayer (Germany)
2020
The Context Camera (CTX) on the Mars Reconnaissance Orbiter (MRO) is a Facility Instrument (i.e., government‐furnished equipment operated by science team not responsible for design and fabrication) designed, built, Malin Space Science Systems MRO Color Imager (MARCI). CTX will (1) provide context images data acquired other instruments, (2) observe features of interest to NASA's Exploration Program (e.g., candidate landing sites), (3) conduct scientific investigation, led MARCI team,...
Cassini has identified a geologically active province at the south pole of Saturn's moon Enceladus. In images acquired by Imaging Science Subsystem (ISS), this region is circumscribed chain folded ridges and troughs approximately 55 degrees S latitude. The terrain southward boundary distinguished its albedo color contrasts, elevated temperatures, extreme geologic youth, narrow tectonic rifts that exhibit coarse-grained ice coincide with hottest temperatures measured in region. Jets fine icy...
Deep Impact collided with comet Tempel 1, excavating a crater controlled by gravity. The comet's outer layer is composed of 1- to 100-micrometer fine particles negligible strength (<65 pascals). Local gravitational field and average nucleus density (600 kilograms per cubic meter) are estimated from ejecta fallback. Initial were hot (>1000 kelvins). A large increase in organic material occurred during after the event, smaller changes carbon dioxide relative water. On approach,...
Voyager 2 images of Neptune reveal a windy planet characterized by bright clouds methane ice suspended in an exceptionally clear atmosphere above lower deck hydrogen sulfide or ammonia ices. Neptune's is dominated large anticyclonic storm system that has been named the Great Dark Spot (GDS). About same size as Earth extent, GDS bears both many similarities and some differences to Red Jupiter. zonal wind profile remarkably similar Uranus. three major rings at radii 42,000, 53,000, 63,000...
The Cassini Imaging Science Subsystem acquired about 26,000 images of the Jupiter system as spacecraft encountered giant planet en route to Saturn. We report findings on Jupiter's zonal winds, convective storms, low-latitude upper troposphere, polar stratosphere, and northern aurora. also describe previously unseen emissions arising from Io Europa in eclipse, a volcanic plume over Io's north pole, disk-resolved satellite Himalia, circumstantial evidence for causal relation between satellites...
Voyager 2 images of the southern hemisphere Uranus indicate that submicrometersize haze particles and a methane condensation cloud produce faint patterns in atmosphere. The alignment bands is similar to on Jupiter Saturn, but zonal winds are nearly opposite. At mid-latitudes (-70 degrees -27 ), where were measured, atmosphere rotates faster than magnetic field; however, rotation rate decreases toward equator, so two probably corotate at about -20 . confirm extremely low albedo ring...
In situ observations show that comet Hartley 2 is an unusually hyperactive comet.
The Mars Science Laboratory (MSL) Hand Lens Imager (MAHLI) investigation will use a 2-megapixel color camera with focusable macro lens aboard the rover, Curiosity, to investigate stratigraphy and grain-scale texture, structure, mineralogy, morphology of geologic materials in northwestern Gale crater. Of particular interest is stratigraphic record ∼5 km thick layered rock sequence exposed on slopes Aeolis Mons (also known as Mount Sharp). instrument consists three parts, head mounted turret...
Hubble Space Telescope images of asteroid 4 Vesta obtained during the favorable 1996 apparition show an impact crater 460 kilometers in diameter near south pole. Color measurements within 13-kilometer-deep are consistent with excavation deep into a high-calcium pyroxene-rich crust or olivine upper mantle. About 1 percent was excavated by formation event, volume sufficient to account for family small Vesta-like asteroids that extends dynamical source regions meteorites. This may be site...
Abstract The U.S. Congress has passed legislation requiring the Environmental Protection Agency (U.S. EPA) to develop, validate, and implement screening tests for identifying potential endocrine‐disrupting chemicals within 3 years. To aid in identification of methods suitable this purpose, EPA, Chemical Manufacturers Association, World Wildlife Fund sponsored several workshops, including present one, which dealt with wildlife species. This workshop was convened 30 international scientists...
Eros is a very elongated (34 kilometers by 11 kilometers) asteroid, most of the surface which saturated with craters smaller than 1 kilometer in diameter. The largest crater 5.5 across, but there 10-kilometer saddle-like depression attributes large degraded crater. Surface lineations, both grooves and ridges, are prominent on Eros; some probably exploit planes weakness produced collisions and/or its parent body. Ejecta blocks (30 to 100 meters across) abundant not uniformly distributed over...
We report the direct detection of solid water ice deposits exposed on surface comet 9P/Tempel 1, as observed by Deep Impact mission. Three anomalously colored areas are shown to include basis their near-infrared spectra, which diagnostic absorptions at wavelengths 1.5 and 2.0 micrometers. These well modeled a mixture nearby non-ice regions 3 6% particles 10 50 micrometers in diameter. particle sizes larger than those ejected during impact experiment, suggests that loose aggregates. The total...
Observations by the Galileo spacecraft and Keck telescope showed that Jupiter's outermost (gossamer) ring is actually two rings circumscribed orbits of small satellites Amalthea Thebe. The gossamer rings' unique morphology—especially rectangular end profiles at satellite's orbit enhanced intensities along top bottom edges rings—can be explained collisional ejecta lost from inclined satellites. evolves inward under Poynting-Robertson drag. This mechanism may also explain origin main suggests...
Columnar, cone-shaped, and funnel-shaped clouds rising 1 to 6 kilometers above the surface of Mars have been identified in Viking Orbiter images. They are interpreted as dust devils, confirming predictions their occurrence on giving evidence a specific form entrainment.
Images acquired of Saturn's rings and small moons by the Cassini Imaging Science Subsystem (ISS) during first 9 months operations at Saturn have produced many new findings. These include saturnian moons; refined orbits previously known narrow diffuse in F-ring region embedded gaps within main rings; exceptionally fine-scale ring structure moderate- to high-optical depth regions; estimates for masses ring-region moons, as well particle properties division, derived from analysis linear density...
High-resolution images of the martian surface at scales a few meters show ubiquitous erosional and depositional eolian landforms. Dunes, sandsheets, drifts are prevalent exhibit range morphology, composition (inferred from albedo), age (as seen in occurrences different dune orientations same location). Steep walls topographic depressions such as canyons, valleys, impact craters crust to be stratified tens meters. The south polar layered terrain superposed permanent ice cap display diverse...
Galileo images of Gaspra reveal it to be an irregularly shaped object (19 by 12 11 kilometers) that appears have been created a catastrophic collisional disruption precursor parent body. The cratering age the surface is about 200 million years. Subtle albedo and color variations appear correlate with morphological features: Brighter materials are associated craters especially along crests ridges, stronger 1-micrometer absorption, may represent freshly excavated mafic materials; darker...