A5023607241- Astro and Planetary Science
- Stellar, planetary, and galactic studies
- Planetary Science and Exploration
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
- Spacecraft and Cryogenic Technologies
- Gamma-ray bursts and supernovae
- Space Exploration and Technology
- Atmospheric Ozone and Climate
- Isotope Analysis in Ecology
- Scientific Research and Discoveries
- Diverse Educational Innovations Studies
- Career Development and Diversity
- Visual and Cognitive Learning Processes
- Calibration and Measurement Techniques
- Pulsars and Gravitational Waves Research
- Educational Strategies and Epistemologies
- Adaptive optics and wavefront sensing
- Spacecraft Dynamics and Control
- Underwater Vehicles and Communication Systems
- Science Education and Pedagogy
Jet Propulsion Laboratory
2024-2025
Cornell University
2020-2024
The University of Texas at Austin
2024
Indian Institute of Technology Guwahati
2017
Abstract Jupiter’s icy moon, Europa, harbors a subsurface liquid water ocean; the prospect of this ocean being habitable motivates further exploration moon with upcoming NASA Europa Clipper mission. Key among mission goals is comprehensive assessment moon’s composition, which essential for assessing Europa’s habitability. Through powerful remote sensing and in situ investigations, will explore composition surface subsurface, its tenuous atmosphere, local space environment surrounding moon....
The NASA Europa Clipper mission will explore Jupiter’s icy moon via multiple flybys in the early 2030s (Pappalardo et al., 2024). ocean world is one of most promising locations to search for life elsewhere Solar System and thus, Clipper’s main goal characterize Europa’s habitability (Vance 2024).In future, a follow-on landed may possibly from its surface (Phillips revision). Based on current technology, terrain relative navigation (TRN) would be used safely...
Undergraduate physics and astronomy students are expected to engage with scientific literature as they begin their research careers, yet reading comprehension skills rarely explicitly taught in major courses. We seek determine the efficacy of a assignment designed improve undergraduate (or related) majors’ perceived ability by using accessible summaries current written experts field. During 2022–2023 academic year, faculty members from six institutions incorporated assignments Astrobites...
For solar-system objects, ultraviolet spectroscopy has been critical in identifying sources for stratospheric heating and measuring the abundances of a variety hydrocarbon sulfur-bearing species, produced via photochemical mechanisms, as well oxygen ozone. To date, less than 20 exoplanets have probed this wavelength range (0.2-0.4 um). Here we use data from Hubble's newly implemented WFC3 UVIS G280 grism to probe atmosphere hot Jupiter HAT-P-41b through optical combination with observations...
Abstract This study provides a pre-impact map of the albedo Double Asteroid Redirection Test (DART) target Dimorphos corrected for all effects viewing geometry, as well an estimate photometric roughness hemisphere imaged by DART. Other properties are derived (65803) Didymos binary system based on DART and ground-based measurements obtained at JPL’s Table Mountain Observatory. The roughness, geometric albedo, phase curve integral, single particle function typical S-family asteroids. major...
Abstract The Galileo Near Infrared Mapping Spectrometer (NIMS) collected spectra of Europa in the 0.7–5.2 μ m wavelength region, which have been critical to improving our understanding surface composition this moon. However, most work done get constraints on abundances species like water ice, hydrated sulfuric acid, salts, and oxides has used proxy methods, such as absorption strength spectral features or fitting a linear mixture laboratory-generated spectra. Such techniques neglect effect...
Abstract We present the analysis of morphological shape Berkeley 17, oldest known open cluster (∼10 Gyr), using probabilistic star counting Pan-STARRS point sources, and confirm its core-tail shape, plus an antitail, previously detected with 2MASS data. The stellar population, as diagnosed by color–magnitude diagram theoretical isochrones, shows many massive members in clusters core, whereas there is a paucity such both tails. This manifests mass segregation this aged low-mass being stripped...
The NASA Europa Clipper mission [1] will explore Jupiter’s icy moon via multiple flybys in the early 2030s. ocean world is one of most promising locations to search for life elsewhere Solar System [2, 3, 4, 5] and thus, Clipper’s main goal characterize Europa’s habitability. In future, a follow-on landed may possibly from its surface. science team, work Reconnaissance Focus Group has been assess trajectory opportunities [6]. Here we show that 12 49 currently...
Spiked, icy features, akin to the ‘penitentes’ on Earth [1], have been found other airless bodies in solar system as well, such 'bladed terrains' of Pluto [2] and 'spires' Callisto [3]. These thought be formed due sublimation erosion, are present young, crater-less regions hence represent an active response surfaces these changing seasonal climatic conditions. Interestingly, penitente formation has also hypothesized Europa [4], albeit feasibility that process questioned...
Significant technology advances have enabled planetary exploration aircraft to be considered as a viable science platform. These systems fill in unique measurement gap, that of the regional scale, near-surface observation while providing new perspective for discovery. Exploration Mars using UAV (Unmanned Aerial Vehicle) has been planned over 25 years by leading space organizations such NASA. Recent efforts able produce some mature mission and flight system concepts, ready project...
Berkeley 17 is known to show a core-tail morphology. Pan-STARRS 1 photometry complete gP1 ≈ 21.5 mag reveals the effect of mass segregation between core and tail (and an antitail). Furthermore, there overall paucity low-mass member stars — likely as consequence tidal stripping by foreground Perseus arm this aged (10 Gyr) cluster. Our analysis indicates that about half blue straggler candidates suspected be associated with may field contaminations, yet some confused horizontal-branch usually...
Undergraduate physics and astronomy students are expected to engage with scientific literature as they begin their research careers, but reading comprehension skills rarely explicitly taught in major courses. We seek determine the efficacy of lesson plans designed improve undergraduate (or related) majors' perceived ability by using accessible summaries current written experts field. During 2022-2023 academic year, twelve faculty members incorporated from Astrobites into courses, surveyed...