I wouldn’t get your hopes up that human eyes will be around to see what an Earth 50,000 years older will look like.
Car keys? No problem, they’re under my left ear. Your spoon fell on the floor? Use this one from my bicep. Are you trying to get my attention? Can’t you read the “go” and “away” magnetic words on my forehead? Now that’s living the dream.
Kepler spacecraft observations indicate 20 billion habitable planets in our galaxy alone. What does that mean? Could humans someday infest 20 billion different planets?
Is life on another planet possible? Can an organism have gills and lungs? What would happen if I could purchase the genetic information of another person?