The Urgency of Establishment International Outer Space Authority as Embodiment of Outer Space Environment Protection

Metric Properties of Outer Space

We define metrics on Culler-Vogtmann space, which are an analogue of the Teichmüller metric and are constructed using stretching factors. In fact the metrics we study are related, one being a symmetrised version of the other. We investigate the basic properties of these metrics, showing the advantages and pathologies of both choices. We show how to compute stretching factors between marked metr...

Towards a New Regime for the Protection of Outer Space as the "Province of All Mankind"

Joining inner space to outer space

The purpose of this paper is to demonstrate that it is possible, in principle, to obtain knowledge of the entire universe at the present time, even if the radius of the universe is much larger than the radius of the observable universe.

The Isometry Group of Outer Space

We prove analogues of Royden’s Theorem for the Lipschitz metrics of Outer Space, namely that Isom(CVn) = Out(Fn).

Spam Zombies from Outer Space

How can better email worms be created? How can spyware claim more victims? How can better spam be sent? It turns out that these three questions are all related. We look at the future threat posed by email worms, spyware, and spammers that use zombie machines in a new way: sophisticated data mining of their victims' saved email. The end result skirts many defenses, and could trick even experienc...