Elon Musk and Jeff Bezos Urged to Save Humanity From 'Earth-Killer' Asteroid
The tech billionaires could collaborate on a "humanity-saving" moon base in case an asteroid hits Earth, Douglas MacKinnon wrote.
Bill Gates Slams Elon Musk and Jeff Bezos: 'Rich People Can Do Whatever They Want… But Malnourishment Is the Worst Thing There Is'
Bill Gates criticized Elon Musk and Jeff Bezos for focusing on space exploration instead of pressing global issues like hunger and disease.
Who is the richest person in the world? What is Elon Musk's net worth
Here's a list of the top ten richest people in the world, nine of which are American billionaires. See Elon Musk's net worth.