Child, it was, of the now ancient H-bomb. New. Untested. Would its terrible power sweep the stark Saturnian moon of Titan from space ... or miraculously create a flourishing paradise-colony? nder the glow of Saturn and his Rings, five of the airdomes of the new colony on Titan were still inflated. They were enormous bubbles of clear, flexible plastic. But the sixth airdome had flattened. And beneath its collapsed roof, propped now by metal rods, a dozen men in spacesuits had just lost all hope