In deep sleep she dreamed she was floating through the air and then soaring above and beyond the clouds.She could exist in another dimension where nebulae swirled in shimmering light, where new galaxies opened to her in the burst of a billion stars, and where suns and moons and brilliantly-hued planets could be hers for the taking.Yet she glided past it all, to reach out in that vast firmament of space with the hope she would discover an end soon, the end of time.As a scientist, ...