The symmetries of outer space by Bridson, M, Vogtmann, K

“…For n≥3, the natural map Out(Fn)→Aut(Kn) from the outer automorphism group of the free group of rank n to the group of simplicial automorphisms of the spine of outer space is an isomorphism. © 2006 Duke University Press.…”

The Cyber-ASAT: on the impact of cyber weapons in outer space by Pavur, JC, Martinovic, I

“…As the threat of cyber attacks against space assets looms, the impact that cyberspace will have on stability in outer space is not well understood. This paper presents a strategic analysis of the impact of cyber weapons on three key stabilizing factors which have thus far contributed to peace in space. …”

Reframing space: macroeconomists engage outer space with the help of scenario planning by Ali, T, Behar, A, Clift, J, Ramirez, R

Ground control to niels bohr: Exploring outer space with atomic physics by Porter, M, Cvitanović, P

Outer space natural resources and justice: a theory of appropriation off-Earth by Zambrano Ramírez, JP

Subjects:

Promoting international co-operation in the age of global space governance – A study on on-orbit servicing operations by Chiu, S

“…Outer space exploration has been an area where the international community demonstrated a significant level of co-operation, successfully transcending geographical, national and cultural boundaries. …”

Securing new space: on satellite cyber-security by Pavur, J

“…More importantly, we propose and validate a flexible method for effective security research at the intersection of outer space and cyberspace. The intention throughout is to offer a launchpad for sustained and necessary work in an unusual domain.…”

Direct products of free groups in Aut(F_N) by Bridson, MR, Wade, R

“…To achieve this, we prove that the image of each such embedding has a canonical fixed point of a particular type in the boundary of Outer space.…”

Symmetries of free and right-angled Artin groups by Wade, R

“…We finish with a brief discussion of the action of $Out(F_n)$ on Culler and Vogtmann's Outer Space. In particular we describe translation lengths of elements with regards to the `non-symmetric Lipschitz metric' on Outer Space.…”

Cross ratios on cube complexes and length-spectrum rigidity by Fioravanti, E

“…</p> <p>As a special case of our results, we construct a compactification of the Charney-Stambaugh-Vogtmann Outer Space for the group of untwisted outer automorphisms of an (irreducible) right-angled Artin group. …”

Nielsen realization by gluing: Limit groups and free products by Hensel, S, Kielak, D

“…As a result, we obtain a fixed point theorem for finite groups of outer automorphisms acting on the relative free splitting complex of Handel and Mosher and on the outer space of a free product of Guirardel and Levitt, and also a relative version of the Nielsen realization theorem, which, in the case of free groups, answers a question of Karen Vogtmann. …”

Abnormal light propagation and the underdetermination of theory by evidence in astrophysics by Asenjo, F, Hojman, S, Linnemann, N, Read, JAM

“…Having established these results, we then turn to their conceptual significance—which, in brief, we take to be the following: (i) one should not assume that the part of electromagnetic waves from outer space that is subject to detection is localised onto null trajectories; therefore (ii) astrophysicists and cosmologists should at least be wary about making such assumptions in their inferences from obtained data, for to do so may lead to incorrect inferences regarding the nature of our universe.…”

Nielsen realization by gluing: limit groups and free products by Hensel, S, Kielak, D

“…As a result, we obtain a fixed point theorem for finite groups of outer automorphisms acting on the relative free splitting complex of Handel and Mosher and on the outer space of a free product of Guirardel and Levitt, and also a relative version of the Nielsen realization theorem, which, in the case of free groups, answers a question of Karen Vogtmann. …”

Size dependent symmetry breaking in models for morphogenesis by Barrio, R, Maini, P, Aragón, J, Torres, M

“…It is shown that the symmetry of the resulting pattern depends only on the size of the disk, regardless of the boundary conditions and of the differences in the parameters that differentiate the interior of the domain from the outer space. This study suggests that additional regulatory mechanisms to control the size of the system are of crucial importance in morphogenesis.…”

Size-dependent symmetry breaking in models for morphogenesis by Barrio, R, Maini, P, Aragon, J, Torres, M

“…It is shown that the symmetry of the resulting pattern depends only on the size of the disk, regardless of the boundary conditions and of the differences in the parameters that differentiate the interior of the domain from the outer space. This study suggests that additional regulatory mechanisms to control the size of the system are of crucial importance in morphogenesis. …”

Drawing the cyber baseline: the applicability of existing international law to the governance of information and communication technologie by Akande, D, Akande, D, Coco, A, de Souza Dias, T

“…Third, in any event, cyberspace is not a domain or a space, in the way that land, air, sea, or outer space are. Rather, it is a combination of multilayered information and communications technologies operating across different domains. …”

Cryogenic toughness of natural silk and a proposed structure–function relationship by Fu, C, Wang, Y, Guan, J, Chen, X, Vollrath, F, Shao, Z

“…We envision that our study will lead to the design and fabrication of new families of tough structural composites using natural silk or silk-inspired filaments for testing applications even at arctic or indeed outer-space conditions.…”

A dynamic upper atmosphere of Venus as revealed by VIRTIS on Venus Express. by Drossart, P, Piccioni, G, Gérard, J, Lopez-Valverde, M, Sanchez-Lavega, A, Zasova, L, Hueso, R, Taylor, F, Bézard, B, Adriani, A, Angrilli, F, Arnold, G, Baines, K, Bellucci, G, Benkhoff, J, Bibring, J, Blanco, A, Blecka, M, Carlson, R, Coradini, A, Di Lellis, A, Encrenaz, T, Erard, S, Fonti, S, Formisano, V

“…The upper atmosphere of a planet is a transition region in which energy is transferred between the deeper atmosphere and outer space. Molecular emissions from the upper atmosphere (90-120 km altitude) of Venus can be used to investigate the energetics and to trace the circulation of this hitherto little-studied region. …”

Fragmented horizons: multinational firms and ethical life in the anthropocene by Choquet, P

“…</p> <p>Once described as the ‘blue planet’ which sphericity could be admired from outer space, the Earth has become, with the advent of the Anthropocene, a thin, tiny, fragile pellicle – a critical zone with frail equilibriums in which human beings have to live, and that admits no outside. …”