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  • Hydrothermal precipitation of sanidine (adularia) having full Al,Si structural disorder and specular hematite at Maunakea Volcano (Hawai'i) and at Gale Crater (Mars) 
    Morris, Richard V.; Rampe, Elizabeth; Vaniman, David; Christoffersen, Roy; Yen, A. S.; Morrison, S. M.; Ming, D. W. (Douglas W.); Achilles, C. N.; Fraeman, A. A.; Le, L.; Tu, V. M.; Ott, J. P.; Treiman, Allan H.; Hogancamp, J. V.; Graff, T. G.; Adams, M.; Hamilton, J. C.; Mertzman, S. A.; Bristow, Thomas F.; Blake, D. F.; Castle, Nicholas; Chipera, S. J.; Craig, Patricia I.; Marais, D. J. Des; Downs, G.; Downs, R. T.; Morookian, J. M.; Thorpe, M.; https://orcid.org/0000-0001-7661-2626; https://orcid.org/0000-0002-8073-2839; https://orcid.org/0000-0003-4080-4997 (2020-06-19)
    A layer of weathering‐resistant material is located within the walls of an erosional gully of the Pu'u Poliahu cinder cone in the summit region of Maunakea volcano (Hawai'i). The volcanic cone, initially composed of unaltered ...
  • Hypervelocity impacts on Skylab IV/Apollo windows 
    Clanton, Uel S., 1931-; Zook, Herbert A.; Schultz, Richard A. (Pergamon Press, 1980)
    The three largest Skylab IV Command Module windows that were exposed for 84 days to space were optically scanned for impact features as small as 30 µm in diameter. Some 289 features were recorded from the 35x scan for later ...
  • Iceland field itinerary : Basaltic Volcanism Study Project : distribution and morphology of basalt deposits on planets 
    Wood, Charles A.; Whitford-Stark, James L.; Head, James W. (Lunar Science Institute, 1977)
    The discussions and itinerary in this guidebook are designed to provide a view of the spectrum of possible Icelandic analogs to planetary volcanic features.
  • Impact cratering in viscous targets: Laboratory experiments 
    Greeley, Ronald; Fink, J.; Gault, Donald E.; Snyder, D. B.; Guest, John, 1938-2012; Schultz, Peter H., 1944- (Pergamon Press, 1980)
    Martian multilobed craters ("splosh" craters, rampart craters, etc.) may involve fluidization of ejecta as a result of entrained water, melted/vaporized ice, and /or aerodynamically decelerated ejecta. To determine the ...
  • Impact cratering, bridging the gap between modeling and observations : February 7-9, 2003, Houston, Texas 
    French, Bevan M.; Herrick, Robert R.; Pierazzo, Elisabetta (Lunar and Planetary Institute, 2003)
    The purpose of this workshop is to discuss how physical observations of craters, both on the Earth and on other solid bodies of the solar system, can be combined with the results from modeling of impact cratering for a ...
  • Impact craters of the Earth 
    Grieve, Richard A. F.; Robertson, P. B. (Lunar and Planetary Institute, 1979)
    Map showing the location of 87 impact craters on Earth and a table showing the name, diameter, age, and coordinates.
  • Impact craters of the Earth 
    Kinsler, Danny C. (Lunar Science Institute, 1977)
    Map showing the location of 76 impact craters on Earth and a table showing the name, diameter, age, and coordinates.
  • Impact heat driven volatile redistribution at Occator crater on Ceres as a comparative planetary process 
    Schenk, Paul M.; Scully, J. E. C.; Buczkowski, Debra L.; Sizemore, Hanna G.; Schmidt, B.; Pieters, Carlé M.; Neesemann, A.; O'Brien, D. P.; Marchi, Simone; Williams, David A. (Planetary geologist); Nathues, A.; De Sanctis, M. Cristina; Tosi, F.; Russell, C. T. (Christopher T.); Castillo-Rogez, Julie; Raymond, Carol A. (Nature, 2020-08-10)
    Here we show using Dawn high-resolution stereo imaging and topography that Ceres' unique composition has resulted in widespread mantling by solidified water- and salt-rich mud-like impact melts with scattered endogenic ...
  • Impact melt generation and transport 
    Orphal, Dennis L.; Borden, W. F.; Larson, S. A.; Schultz, Peter H., 1944- (Pergamon Press, 1980)
    A series of continuum mechanics computer code calculations are planned to investigate the effects of variations in impactor mass and velocity on the generation and transport of impact melt. Results from the first two ...
  • The Impact of Lunar Dust on Human Exploration : February 11-13, 2020, Houston, Texas 
    Unknown author (Lunar and Planetary Institute, 2020)
    Covers: Lunar Dust: Nature and Characteristics; The Impact of Lunar Dust on Human Health; The Impact of Lunar Dust on Human Surface Systems and Surface Operations.
  • Impact of new lunar surface information on ALSEP design 
    Wilburn, Frank E. (Bendix Systems Division, 1967)
    This ATM describes recent scientific evidence, and resulting conclusions relating to the Apollo Landing Site Surface Model in the specific areas of cohesion, bearing strength and "effective slope." The possible effects of ...
  • Impact of open lines in experiment cables 
    Wilson, H. W. (Bendix Aerospace Systems Division, 1969)
    The purpose of this EATM is to answer the questions raised at the PSEP CDR regarding cutting the unused experiment cables. It is shown that there will be no impact on system performance as a result of cutting/these unused cables.
  • Impact shock origin of diamonds in ureilite meteorites 
    Nestola, Fabrizio; Goodrich, Cyrena Anne; Morana, Marta; Barbaro, Anna; Jakubek, Ryan S.; Christ, Oliver; Brenker, Frank E.; Domeneghetti, M. Chiara; Dalconi, M. Chiara; Alvaro, Matteo; Fioretti, Anna Maria; Litasov, Konstantin D.; Fries, Marc D.; Leonii, Matteo; Casati, Nicola P. M.; Jenniskens, Petrus Matheus Marie; Shaddad, Muawia H.; https://orcid.org/0000-0002-5724-9216 (National Academy of Sciences, 2020-09-28)
    We found no evidence that formation of micrometer(s)-sized diamonds or associated Fe-S-P phases in ureilites require high static pressures and long growth times, which makes it unlikely that any of the diamonds in ureilites ...
  • Impact-induced fractionation in the lunar highlands 
    Warner, Jeffrey L.; Simonds, Charles H.; Phinney, William C. (Pergamon Press, 1974)
    A synthesis of the relevant data concerning lunar highland polymict breccias from the fields of petrography, chemistry, photogeology, and impact studies compels the prediction that the breccias should have homogeneous ...
  • Impact-melt origin for the Simondium, Pinnaroo, and Hainholz mesosiderites: Implications for impact processes beyond the earth-moon system 
    Floran, R. J.; Caulfield, J. B. D.; Harlow, G. E.; Prinz, M. (Pergamon Press, 1978)
    The Simondium, Pinnaroo, and Hainholz mesosiderites are interpreted to be clast-laden impact melts that crystallized from immiscible silicate, metallic (Fe-FeS) liquids.
  • The importance of (Noachian) impact craters as windows to the subsurface and as potential hosts of life 
    Schwenzer, Susanne Petra; https://orcid.org/0000-0002-9608-0759; Abramov, Oleg; Allen, Carlton; Clifford, Stephen Mark, 1952-; Filiberto, Justin; https://orcid.org/0000-0001-5058-1905; Kring, David A. (David Allen); Lasue, Jeremie; https://orcid.org/0000-0001-9082-4457; McGovern, Patrick J. (Geophysicist); Newsom, Horton E.; Treiman, Allan H.; https://orcid.org/0000-0002-8073-2839; Wittmann, Axel 1971-; https://orcid.org/0000-0001-7572-0801; https://orcid.org/0000-0001-9647-3096; https://orcid.org/0000-0002-2884-2299; https://orcid.org/0000-0002-3440-6282; https://orcid.org/0000-0003-0771-1713 (2009)
    Noachian impact craters are important exploration targets, providing subsurface access, data on crucial geological processes, and warm, water-rich environments possibly conducive to life.
  • The Importance of Ground-Based Radar Observations for Planetary Exploration 
    Rivera-Valentín, Edgard G.; Taylor, Patrick A.; Sanchez-Vahamonde, Carolina Rodriguez; Hickson, Dylan; Neish, Catherine; Brozović, Marina; Whitten, Jennifer; Meyer, Heather M.; Busch, Michael W.; Campbell, Bruce A.; Campbell, Donald B.; Margot, Jean-Luc; Virkki, Anne K.; Venditti, Flaviane C. F.; Nolan, Michael C.; Howell, Ellen S.; Womack, Maria; Pinilla-Alonso, Noemí; https://orcid.org/0000-0002-4042-003X; https://orcid.org/0000-0002-2493-943X; https://orcid.org/0000-0002-6888-9868 (2020)
    A white paper submitted to the Planetary Science and Astrobiology Decadal Survey 2023-2032. Here, we discuss several community-identified priority science questions that ground-based radar studies are particularly suited ...
  • The Importance of Measuring Heat Flux Near the Lunar South Pole 
    Kiefer, Walter S.; https://orcid.org/0000-0001-6741-5460; Nagihara, Seiichi; Grott, Matthias; Siegler, Matthew; Zacny, Kris (2020)
    On the Moon, in situ measurements of heat flow were made at the Apollo 15 and 17 landing sites [1-3] and are planned to be made in Mare Crisium on the 2023 Commercial Lunar Payload System (CLPS) mission. Measuring heat ...
  • The importance of solar system sample return missions to the future of planetary science : March 5–6, 2011, The Woodlands, Texas 
    Bass, Deborah Simone; Beaty, D. W. (David W.); Conley, Catharine; Neal, Clive R.; Wadhwa, Meenakshi; https://orcid.org/0000-0003-0705-3490 (Lunar and Planetary Institute, 2011)
    The workshop will focus on why sample return science is important to the future of solar system science and exploration, including the implications for NASA as it plans and implements future missions to a variety of solar ...
  • The importance of the study of igneous rocks and compositions to constrain the Martian planetary evolution. 
    Udry, Arya; Filiberto, Justin; https://orcid.org/0000-0001-5058-1905; Gross, Juliane; Schmidt, Mariek E.; Rogers, Deanne; Hausrath, Libby; Wiens, Roger; Lanza, Nina (2020-07)
    This white paper summarizes the scientific importance of studying igneous compositions in meteorites, surface samples, and through orbital analyses to better constrain the geology of Mars as a whole and better understand ...

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