Many believe we need to colonize space to get all of our eggs out of one basket, in case something should happen to Earth, but colonizing space might be the best way to protect and preserve our world.

Successful Colonization of Different Habitats Depend on the Population's Expansion Speed and Growth (IMAGE) University of California - San Diego ...

Could the Real Stuff Stop Us From Colonizing the Moon? Published May 08, ... To try to cover their bases, the researchers used five different recipes for fake moon dust.