Onde estamos, como podemos ir, e como poderá ser noutro lado

• Astronomy Without A Telescope – Don’t Make a Meal of It | Universe Today

•  Pushing Up Against Lightspeed|Centauri Dreams 

• Other Life in the Multiverse?: "What conditions would you say are ‘congenial to life’? For physicist Robert Jaffe and colleagues at MIT, the phrase refers to places where stable forms of hydrogen, carbon and oxygen can exist." e "Economist's View: "Life Beyond Our Universe"