Scouting the spectrum for interstellar travellers
Popular Physics
2014-09-30 v1 Space Physics
Abstract
Advanced civilizations capable of interstellar travel, if they exist, are likely to have advanced propulsion methods. Spaceships moving at high speeds would leave a particular signature which could be detected from Earth. We propose a search based on the properties of light reflecting from objects travelling at relativistic speeds. Based on the same principles, we also propose a simple interstellar beacon with a solar sail.
Keywords
Cite
@article{arxiv.1203.3980,
title = {Scouting the spectrum for interstellar travellers},
author = {Juan Carlos Garcia-Escartin and Pedro Chamorro-Posada},
journal= {arXiv preprint arXiv:1203.3980},
year = {2014}
}