We know far more about that now than we did then:
Astronomers now know that Earth is a rare, life-friendly “oasis in the big vastness of space,” as Borman later reflected. In the past few decades they have discovered that life on our planet depends on many improbable “rare-earth” factors. Earth must orbit the sun at just the right distance, with just the right axial tilt, and with just the right-shaped orbit and right planetary neighbors. Life depends on Earth having a moon of the right size at the right distance. The solar system as a whole must also reside in a narrow life-friendly band of space within our galaxy, the “galactic habitable zone.” We’ve also come to appreciate that we inhabit a privileged platform for scientific discovery. Earth’s crust is endowed with the abundant mineral and energy resources required for advanced technology, including that necessary for sending astronauts to the moon. Our clear atmosphere and location far from the center of a large galaxy allow us to learn about the universe near and far. At a deeper level, physicists now know that the universe itself exhibits extreme fine-tuning. Guillermo Gonzalez & Steve Meyer , “Apollo 8 and Our Privileged Planet” at National Review
Sadly, in the intervening years, computer-modelled claims about string theory, eternal cosmic inflation, the multiverse, and the universe as a computer sim have come to rival news of exploration of Mars for public attention. TED talks are easier, cheaper, and safer than space missions too.
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See also: What becomes of science when the evidence does not matter?