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May 8, 2019 07:00 am

Robert Zubrin Makes 'The Case For Space'

Slashdot reader schwit1 shares a report from USA Today discussing a new book from famed astronautical engineer Bob Zubrin, who makes the case for why we should go to space -- not only for the knowledge and challenge, but to "ensure our survival and protect our freedom." Among the reasons why he thinks we need to spread out through the Solar System (and perhaps beyond): For the Knowledge: We know little about the universe, despite our conceit that we have things figured out. The farther we go, the more new things we will encounter, and the more our knowledge and understanding will expand. For the Challenge: Zubrin looks at the way the Age of Exploration rejuvenated a stagnant Europe at the beginning of the 16th Century, and the way the American frontier imparted a dynamism to American culture that, since that frontier's closing, seems to have faded. New frontiers, with their array of opportunities and challenges, make an excellent antidote to stagnation, aristocracy and zero-sum thinking. For Our Survival: Last week saw reports that an 1100-foot asteroid will pass within 13,000 miles of earth -- that's closer than many satellites -- in less than a decade. (The famous Barringer Meteor Crater in Arizona was made by an asteroid a fraction that size, and exploded with the force of more than 100 Nagasaki-sized atomic bombs). These asteroid encounters turn out to be much more common than once thought, and the likelihood of a strike is high enough that authorities are rehearsing a response. With a strong space economy, deflecting dangerous asteroids will be easy. Without it, we're just sitting ducks in a cosmic shooting gallery. For Our Freedom: Earth is crowded, and governments (and corporations like Facebook) are getting ever more intrusive as privacy grows every more scarce. The danger of a global tyranny backed by modern technology of surveillance and control is growing. Getting a sizable chunk of humanity off the planet and far enough away -- the Moon, Mars, even the asteroid belt -- makes it less likely that such a tyranny could become all-encompassing.

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