Results 61 to 70 of about 1,490 (202)

Probing Subsurface Properties With Mission Hardware: Lessons Learned From Artificial Impacts of Mars 2020

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Hardware released during spacecraft entry can generate hypervelocity impacts that provide unique constraints on planetary subsurface properties. During NASA's Perseverance descent, two tungsten cruise ballast mass devices (CBMD) and fragments of the cruise stage formed meter‐scale craters north‐west of Jezero crater, in one of the sinuous ...
A. J. Sokołowska, I. J. Daubar, G. S. Collins, F. Calef, A. Jones   +4 more
wiley   +1 more source

Frequency‐Dependent Acoustic Reflection Coefficients of Flat Ground Assessed Using the Sonic Boom From the OSIRIS‐Rex Sample Return Capsule Recorded on Free Flying Balloons

Geophysical Research Letters
Low frequency sound can travel great distances in planetary atmospheres. When these waves reflect off the air/ground interface, energy may be absorbed or transferred to mechanical waves in the subsurface.
Daniel C. Bowman, Jonathan M. Lees, Siddharth Krishnamoorthy, Elizabeth A. Silber, Jacob S. Izraelevitz, Ashish Goel, Emalee Hough, Zach Yap, Mirza Samnani, Michael J. Fleigle, Justin R. LaPierre, James A. Cutts, Attila Komjathy   +12 more
doaj   +1 more source

Alberta bolide of June 1, 1982: interpretation of photographic and seismic records

, 1989
Passage of a bright bolide northeast of Edmonton near midnight on the evening of June 1, 1982, was recorded both photographically by three cameras of the Meteorite Observation and Recovery Project of the National Research Council of Canada and by ...
G. L. Cumming
core   +1 more source

Neutron Diffraction Evidence for Stress‐Induced Melting of Ice During Deformation of D2O‐Ice Ih—Fluorite Mixtures

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract Water ice is an important rock‐forming mineral, both on the Earth and on various extraterrestrial bodies. Naturally occurring ice is often “dirty”–an intimate mixture with harder mineral grains, which can have significant effects on the bulk properties of the aggregate. We have used neutron powder diffraction, with in situ triaxial deformation,
Ceri A. Middleton, A. Dominic Fortes, Peter M. Grindrod, Shu Yan Zhang, Stephen J. Covey‐Crump, Peter R. Sammonds, Ian G. Wood, David P. Dobson, Lidunka Vočadlo, Simon A. Hunt   +9 more
wiley   +1 more source

Bolide light curve systematics from 75 recovered meteorites

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2351-2392, September 2026.
Abstract How does the energy deposition profile (light curve), deceleration, and penetration depth in Earth's atmosphere depend on asteroid composition and meteorite type? Here, we present the light curve and velocity profile of 75 bolides from camera‐documented meteorite falls.
Peter Jenniskens, Stuart Pilorz, Darrel Robertson, Eric C. Stern   +3 more
wiley   +1 more source

Large Leonid entry modeling : application to the bolide of 11/17/1998 [PDF]

, 2001
In this paper we apply the theoretical entry model of ReVelle (2001c) to the large Leonid bolide of November 17, 1998. We modeled the entry both using hypersonic aerodynamics and compared the results to the infrasonic detection and interpretation of the ...
ReVelle, D. O. (Douglas O.)
core  

Os Bólides do programa ambiental de Hélio Oiticica

ARS, 2011
O texto aborda os Bólides de Hélio Oiticica, desenvolvidos no âmbito do Programa Ambiental, entre os anos de 1965-1966 e início de 1967. Nesse período, percebe-se que eles atuam no sentido de construir uma linguagem própria à vanguarda brasileira dos ...
Angela Varela Loeb
doaj   +1 more source

Bolide energy estimates from infrasonic measurements [PDF]

, 2004
. The acoustic amplitude-yield relationships, including formal errors, for a population of energetic (>0.05 kt) and well-observed bolide events have been investigated.
Peter G Brown, Douglas O Revelle, Wayne N Edwards   +2 more
core  

Seismic and acoustic detection of a bolide airburst in the Gulf of Naples (southern Italy)

, 2006
On 10 September 2005 at 1711 LT (1511 UT) a loud boom was heard on the Ischia island. A clear seismic signal was also recorded by the seismic monitoring network of the Neapolitan volcanic areas (Ischia, Campi Flegrei, and Mount Vesuvius) and on a ...
D'Auria, L., Marotta, E., Ricciolino, P., Martini, M.   +3 more
core   +1 more source

The bolide of February 10, 2010: Observations in Hidalgo and Puebla, Mexico

Geofísica Internacional, 2011
El 10 de febrero de 2010 los habitantes de algunas poblaciones cercanas a los límites entre los estados de Puebla e Hidalgo, México, escucharon un fuerte estallido sobre sus cabezas acompañado de tremores sísmicos y vibración en techos de lámina y ...
Guadalupe Cordero, Karina Cervantes-de la Cruz, Eduardo Gómez   +2 more
doaj   +1 more source