Elon Musk wants humans to live on Mars. NASA wants, at the very least, to send some astronauts over to the Red Planet to check it out. But the Trump administration has recently signaled that it’s more interested in sending astronauts back to the moon.
As a space science professor, I believe this is the perfect opportunity to revive an important debate: If humans needed to beat a retreat from planet Earth, would it be better to live on Mars, or on the moon?
First, let’s consider the advantages of Mars.