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Asteroids: Relics of Ancient Time
Michael K. Shepard
- 16 Apr 2015
11
TL;DR: A night at the zoo, a day at the museum, a trip to the museum and a night in outer space are some of the classic tourist activities as discussed by the authors. But none of these are suitable for children.
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Abstract: Preface Acknowledgments 1. It's a small world 2. A night at the zoo 3. It came from outer space 4. A day at the museum 5. The gambler's fallacy 6. Remembrance of things past 7. The ties that bind 8. Terra incognita 9. To your scattered bodies go 10. Scouts, sappers, and miners Glossary References Index.
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Citations
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The Value of Science in Space Exploration
James S. J. Schwartz
- 02 Mar 2020
TL;DR: The Value of Science in Space Exploration provides a rigorous assessment of the value of scientific knowledge and understanding in the context of contemporary space exploration, arguing that traditional spaceflight rationales are deficient, and that the strongest defense of spaceflight comes from its potential to produce intrinsically and instrumentally valuableknowledge and understanding.
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Radar Observations of Itokawa in 2004 and Improved Shape Estimation
S. J. Ostro,Lance A. M. Benner,Christopher Magri,J. D. Giorgini,Randy Rose,Raymond F. Jurgens,D. K. Yeomans,A. A. Hine,Michael C. Nolan,Daniel J. Scheeres,Stephen B. Broschart,M. Kaasalained,Jean-Luc Margot +12 more
- 01 Aug 2005
TL;DR: Ostro et al. as mentioned in this paper presented June 2004 radar images of asteroid 25143 Itokawa (1998 SF36) that improved upon the longitude-latitude coverage of images obtained in 2001 by Ostro et.
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•Book
Introduction to Planetary Photometry
Michael K. Shepard
- 01 Apr 2017
TL;DR: In this article, the authors introduce planetary photometry as a quantitative remote sensing tool and demonstrate how reflected light can be measured and used to investigate the physical properties of bodies in our Solar System.
30
Marking Policy for New Asteroid Activities: In Pursuit of Science, Settlement, Security, or Sales?
Alanna Krolikowski,Martin Elvis +1 more
TL;DR: In this paper, the authors argue that the 4 main categories of asteroid activities envisioned today, scientific research (science), human settlement of other parts of the solar system (settlement), planetary defense (security), and mining (sales), are best served by policy regimes with distinct features.
22
References
A Nobel Tale of Postwar Injustice
TL;DR: In this article, a narrow majority of the members of the Royal Swedish Academy of Sciences decided to award the 1944 Nobel Prize in Chemistry to Otto Hahn for the discovery of nuclear fission.
Size Distribution of Faint Jovian L4 Trojan Asteroids
Fumi Yoshida,T. N. Nakamura +1 more
TL;DR: In this paper, the authors detected 51 faint Jovian Trojan asteroids in the L4 Lagrangian swarm in survey observations near opposition and the ecliptic using a wide-field mosaicked CCD camera on the 8.2 m Subaru Telescope.
Images of Asteroid 21 Lutetia: A Remnant Planetesimal from the Early Solar System
Holger Sierks,Philippe Lamy,Cesare Barbieri,Detlef Koschny,Hans Rickman,Hans Rickman,Rafael Rodrigo,M. F. A'Hearn,Francesco Angrilli,M. A. Barucci,J. L. Bertaux,Ivano Bertini,Sebastien Besse,Benoit Carry,Gabriele Cremonese,V. Da Deppo,B. J. R. Davidsson,Stefano Debei,M. De Cecco,J. de León,Francesca Ferri,Sonia Fornasier,Sonia Fornasier,Marco Fulle,Stubbe F. Hviid,Robert Gaskell,Olivier Groussin,P. J. Gutiérrez,Wing-Huen Ip,Laurent Jorda,Mikko Kaasalainen,Horst Uwe Keller,Jörg Knollenberg,R. Kramm,Ekkehard Kührt,Michael Küppers,Luisa Lara,Monica Lazzarin,C. Leyrat,J. J. Lopez Moreno,Sara Magrin,Simone Marchi,Simone Marchi,Francesco Marzari,Matteo Massironi,Harald Michalik,Richard Moissl,Giampiero Naletto,F. Preusker,L. Sabau,W. Sabolo,Frank Scholten,Colin Snodgrass,Nicolas Thomas,Cecilia Tubiana,P. Vernazza,Jean-Baptiste Vincent,K. P. Wenzel,Thomas Andert,Martin Pätzold,Benjamin P. Weiss +60 more
TL;DR: A spacecraft flyby of an asteroid reveals a high-density body that is more like a planetesimal than a rubble pile, which contrasts with smaller asteroids visited by previous spacecraft, which are probably shattered bodies, fragments of larger parents, or reaccumulated rubble piles.
The Recent Breakup of an Asteroid in the Main-Belt Region
TL;DR: The discovery of a family of asteroids that formed in a disruption event only 5.8 ± 0.2 million years ago, and which has subsequently undergone little dynamical and collisional evolution, is reported.
The tumbling spin state of (99942) Apophis
Petr Pravec,P. Scheirich,Josef Ďurech,Joe Pollock,Peter Kusnirak,Kamil Hornoch,Adrian Galad,David Vokrouhlický,Alan W. Harris,Emmanuel Jehin,Jean Manfroid,Cyrielle Opitom,Michaël Gillon,François Colas,Julian Oey,J. Vrastil,J. Vrastil,Daniel E. Reichart,K. M. Ivarsen,J. B. Haislip,Aaron P. LaCluyze +20 more
TL;DR: In this paper, the authors used the theory of asteroid nutational damping by Breiter et al. and found that slowly tumbling asteroids predominate in the spin rate-size range where their estimated damping times are greater than about 0.2 Gyr.