An argument that we have a moral duty to explore other planets and solar systems--because human life on Earth has an expiration date. Inevitably, life on Earth

The apocalyptic history of humanity over the next 500 years was revealed to the author, a long time member of the distinguished Planetary Society, by a mysterio

A penetrating take on how our planet would respond without the relentless pressure of the human presence

An alternative and unorthodox view of the colonization of the Americas by Europeans is offered in this concise history. Eurocentric studies of the conquest of t