Results 51 to 60 of about 1,669 (216)

Laboratory Studies of Hypervelocity Impacts on Solar System Analogues [PDF]

, 2015
Impact cratering and asteroid collisions are major processes throughout the Solar System. Although previous collision-related impact investigations exist (Flynn et al. 2015, Holsapple et al. 2002 and Burchell et al.
Morris, Andrew James Wulfric
core  

Global vulnerability to near-Earth object impact

, 2010
A clear appreciation of the consequences resulting from an asteroid impact is required in order to understand the near Earth object (NEO) hazard. Three main processes require modelling to analyse the entire impact event.
Lewis, H.G., Swinerd, G.G., Bailey, N.J., Crowther, R.   +3 more
core   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

On the consequences of a fragmentation due to a NEO mitigation strategy [PDF]

, 2008
The fragmentation of an Earth threatening asteroid as a result of a hazard mitigation mission is examined in this paper. The minimum required energy for a successful impulsive deflection of a threatening object is computed and compared with the energy ...
Vasile, M., Sanchez Cuartielles, Joan-Pau, Vasile, Massimiliano, Sanchez Cuartielles, J.P., Radice, G., Sanchez, J.P., Radice, Gianmarco   +6 more
core  

Sampling, Mobility, and Anchoring in Small‐Body Sampling Robots: A Comprehensive Review

SmartBot, EarlyView.
Small‐body sampling robots are exploration systems that perform contact, sampling, and stable operations on microgravity bodies such as asteroids and comets. The authors review representative robot architectures and key technologies, focusing on the mechanisms, evolution, and coupling of sampling, mobility, and anchoring.
Yurui Shen, Yixin Zhu, Mingxia Bao, Ting Zhang, Jun Wu, Jingbin Hao, Dezheng Hua, Xinhua Liu   +7 more
wiley   +1 more source

An Efficient Numerical Approach to Modeling the Effects of Particle Shape on Rubble-pile Dynamics

The Planetary Science Journal, 2023
We present an approach for the inclusion of nonspherical constituents in high-resolution N -body discrete element method (DEM) simulations. We use aggregates composed of bonded spheres to model nonspherical components.
Julian C. Marohnic, Joseph V. DeMartini, Derek C. Richardson, Yun Zhang, Kevin J. Walsh   +4 more
doaj   +1 more source

Static recrystallization of shocked calcite in Ries impact breccias

Meteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann, Fabian Dellefant, Lina Seybold, Wolfgang W. Schmahl, Elena Sturm, Daniel Weidendorfer, Sandro Jahn, Iuliia V. Sleptsova, Stuart A. Gilder   +8 more
wiley   +1 more source

Thermophysical Model of (269) Justitia—Main Belt Asteroid Possibly Implanted from Trans-Neptunian Region

The Planetary Science Journal
Asteroid Justitia is a special main-belt object, being an extremely red body with a steeper spectral slope than any other D-type asteroid. Conversely, its spectral and polarimetric properties resemble organics-rich Centaurs and trans-Neptunian objects ...
Anna Marciniak, Antoine Choukroun, Julia Perła, Waldemar Ogłoza, Robert Szakáts, Pierre Antonini, Raoul Behrend, Géza Csörnyei, Marek Dróżdż, Marcel Fauvaud, Stéphane Fauvaud, Adrian Jones, Dong-Heun Kim, Myung-Jin Kim, Viktor Kudak, Iga Mieczkowska, Erika Pakštienė, Vasyl Perig, Eda Sonbas   +18 more
doaj   +1 more source

Visible, near‐, and thermal infrared spectra of asteroid Bennu samples: Relationship to and implications for remote sensing of carbonaceous asteroids

Meteoritics &Planetary Science, EarlyView.
Abstract Remote spectroscopy is used to characterize the mineralogy and infer the history of planetary bodies. Carbonaceous asteroids, such as B‐type (101955) Bennu, represent the earliest stages of planet formation. B types have a blue (negative) spectral slope and comprise <5% of asteroids.
V. E. Hamilton, E. A. Cloutis, R. E. Milliken, P. Haenecour, D. R. Golish, K. J. Domanik, T. J. McCoy, L. P. Keller, A. A. Simon, H. H. Kaplan, C. A. Goodrich, S. A. Sandford, D. Applin, T. Hiroi, D. H. Hill, N. G. Lunning, F. M. McCubbin, S. A. Eckley, C. J. Snead, E. H. Blumenfeld, J. E. Aebersold, C. Schultz, N. Bowles, K. A. Shirley, S. S. Russell, J. J. Barnes, T. J. Zega, D. N. DellaGiustina, A. J. Ryan, D. P. Glavin, J. P. Dworkin, H. C. Connolly Jr., D. S. Lauretta   +32 more
wiley   +1 more source

Rotation Periods of Asteroids Determined With Bootstrap Convex Inversion From ATLAS Photometry

Frontiers in Astronomy and Space Sciences, 2022
The rotation period is one of the fundamental physical characteristics of asteroids. It can be determined from photometric measurements by standard methods of time-series period analysis or by creating a physical model of an asteroid with the rotation ...
Josef Ďurech, Michael Vávra, Radim Vančo, Nicolas Erasmus   +3 more
doaj   +1 more source