“Unlike other animals, humans are quite comfortable sleeping on our backs. This simple fact affords us a view of the boundless night sky as we fall asleep, allowing us to dream about our place in the cosmos and to wonder what lies undiscovered in the worlds beyond.
The effect is to leave us restless for want of a plan to discover. We know in our minds, but especially in our hearts, the value to our culture of new voyages and the new vistas they provide. Because without them, our culture stalls and our species withers. And we might as well go to sleep facing down.”
NEIL DEGRASSE TYSON

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