What If Earth Had Jupiter’s Moons?

Imagine looking up into the night sky and seeing not one but 79 different moons beaming back at you. What would this new night sky look like? How would this affect the...

What If No One Ever Died?

For most of human history, living to old age was a rare achievement. Just over a century ago, the average life expectancy in the United States was only around 50 years...