> the amount of habitable places in the observable universe Based on the range of extremophiles we have from just one planet, that's a lot more than you might

> the amount of habitable places in the observable universe Based on the range of extremophiles we have from just one planet, that's a lot more than you might think: * -20 to 120 degrees celsius * 1,100 bar pressure * ph 1 to 11 * 6000 Gy radiation (a CT scan is about 6 mGy)