Posted by: Alejandro Grajal, PhD, President and CEO Last week, SpaceX CEO Elon Musk detailed his goal to make humans a multi-planetary species. He believes, as do I and many scientists, that humans are at a crossroads. Life on Earth as we know it is headed to its sixth extinction event. He says we can stay here and face the consequences, or we can become a space-faring species. Hanging out on Mars would be a handy option when Earth gets too crowded and its resources too depleted. His vision is we should build a highway to Mars now and begin colonizing, and he wants the whole world involved. Clearly, such out-of-the-box thinking gets attention and investment. It certainly gets my attention. Not necessarily because I agree or disagree with Musk. I must admit that whether we should colonize Mars is not a question that keeps me up at night. The question that does keep me up at night is this: How can we do more to save the planet we’re already on? Rather than make humans into a mult