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

Could Galileo, Leonardo da Vinci, Christopher Columbus, even the incredible visionary Jules Verne, have imagined the late 20th century world? That's the grand t