Deep Time
"One thing is certain: By that time, we most certainly won't be around. In fact, humanity only has about one billion years left unless we find a way off this rock. That's because the Sun is increasing in brightness by about 10 percent every billion years."
"That doesn't sound like much, but that increase in brightness will end life on Earth. Our oceans will evaporate, and the surface will become too hot for water to form. We'll be about as kaput as you can get."
