Acta Astronautica Abstract Directed panspermia involves the deliberate spread of life between planets by intelligent actors. While it was originally proposed to explain the origin of life on Earth, rece

Science and Engineering Ethics, 28. Abstract The biosphere represents the global sum of all ecosystems. According to a prominent view in environmental ethics, ecocentrism, these ecosystems matter for the

In the new book “Ethics and Existence - The legacy of Derek Parfit”, several of the most prominent scholars on the issues raised by Derek Parfit, contributes 20 completely original articles. "­Derek r