Hundreds of Nomadic Worlds Within 4 Light Years
by Brian Wang from NextBigFuture.com on (#67EC6)
New research indicates that tens to hundreds of planet-sized nomadic worlds may populate the spherical volume centered on Earth and circumscribed by Proxima Centauri, and thus may comprise closer interstellar targets than any stellar planetary system. For the first time, there is systematic analysis of the feasibility of exploring these unbounded celestial bodies via deep ...