Results 111 to 120 of about 4,877 (221)

Mission to the Trojan Asteroids: lessons learned during a JPL Planetary Science Summer School mission design exercise

, 2013
The 2013 Planetary Science Decadal Survey identified a detailed investigation of the Trojan asteroids occupying Jupiter's L4 and L5 Lagrange points as a priority for future NASA missions.
Balcerski, Jeffrey, Benneke, Bjoern, Budney, Charles J., Carande, Bryce, Diaz-Silva, Ricardo A., Diniega, Serina, Fraeman, Abigail A., Gil, Stephanie, Guzewich, Scott D., Hudson, Jennifer, Livi, Roberto, Lowes, Leslie L., Nahm, Amanda L., Potter-McIntyre, Sally, Route, Matthew, Sayanagi, Kunio M., Urban, Kevin D., Vasisht, Soumya, Williams, Brian   +18 more
core   +1 more source

The Pre-perihelion Evolution of the Activity of Comet C/2017 K2 (Pan-STARRS) during the Water Ice-line Crossover

The Astronomical Journal
Comets, relics from the early solar system, consist of dust and ice. The ice sublimates as comets approach the Sun, ejecting dust from their nuclei seen as activity.
Yuna G. Kwon, Stefano Bagnulo, Johannes Markkanen, Ludmilla Kolokolova, Jessica Agarwal, Manuela Lippi, Zuri Gray   +6 more
doaj   +1 more source

JWST Detection of a Carbon-dioxide-dominated Gas Coma Surrounding Interstellar Object 3I/ATLAS

The Astrophysical Journal Letters
3I/ATLAS is the third confirmed interstellar object to visit our solar system and only the second to display a clear coma. Infrared spectroscopy with the James Webb Space Telescope (JWST) provides the opportunity to measure its coma composition and ...
Martin A. Cordiner, Nathan X. Roth, Michael S. P. Kelley, Dennis Bodewits, Steven B. Charnley, Maria N. Drozdovskaya, Davide Farnocchia, Marco Micheli, Stefanie N. Milam, Cyrielle Opitom, Megan E. Schwamb, Cristina A. Thomas, Stefano Bagnulo   +12 more
doaj   +1 more source

Spectroscopic identification of water emission from a main-belt comet. [PDF]

Nature, 2023
Kelley MSP, Hsieh HH, Bodewits D, Saki M, Villanueva GL, Milam SN, Hammel HB.   +6 more
europepmc   +1 more source

Observations of the D/H ratio in Methane in the atmosphere of Saturn's moon, Titan - where did the Saturnian system form? [PDF]

, 2013
The details of the Solar system's formation are still heavily debated. Questions remain about the formation locations of the giant planets, and the degree to which volatile material was mixed throughout the proto-planetary system.
Bailey, Jeremy, Horner, Jonathan, Kedziora-Chudczer, Lucyna   +2 more
core   +1 more source

The Role of Ammonia in the Distribution of Volatiles in the Primordial Hydrosphere of Europa

The Planetary Science Journal
The presence of a hydrosphere on Europa raises questions about its habitability, and studies of its volatile inventory can provide insight into its formation process. Different scenarios suggest that Europa's volatiles could be derived from cometary ices
Alizée Amsler Moulanier, Olivier Mousis, Alexis Bouquet, Christopher R. Glein   +3 more
doaj   +1 more source

Modeling the surface and interior structure of comet nuclei using a multidisciplinary approach [PDF]

The goal was to investigate the structural properties of the surface of comet nucleus and how the surface should change with time under effect of solar radiation.
Dakoulas, Panos C., Odell, C. R., Pharr, George M.   +2 more
core   +1 more source

Water Production of Interstellar Comet 3I/ATLAS from SOHO/SWAN Observations after Perihelion

The Astrophysical Journal Letters
The Solar Wind Anisotropies all-sky hydrogen Lyman-alpha camera on the Solar and Heliosphere Observatory observed the hydrogen coma of interstellar comet 3I/ATLAS, also called C/2025 N1 (ATLAS), beginning on 2025 November 6, 9 days after perihelion ...
M. R. Combi, T. Mäkinen, J. L. Bertaux, E. Quémerais, S. Ferron, R. Lallement, W. Schmidt   +6 more
doaj   +1 more source

Space missions to comets [PDF]

The broad impact of a cometary mission is assessed with particular emphasis on scientific interest in a fly-by mission to Halley's comet and a rendezvous with Tempel 2.
Brandt, J. C., Hobbs, R. W., Neugebauer, M., Yeomans, D. K.   +3 more
core   +1 more source

Unraveling the Water Sources in Comet 103P/Hartley 2 from Deep Impact Flyby Observations

The Planetary Science Journal
The Deep Impact eXtended Mission flyby of comet 103P/Hartley 2 offered a rare opportunity to study a hyperactive comet with high-cadence and high-resolution observations from a fixed vantage point.
L. M. Feaga, J. M. Sunshine
doaj   +1 more source