—and that being so:
".... There will be no sounds on the moon.... Even a meteor shattering itself to a violent end against the surface of the moon would make no noise. Nor would it herald its coming by glowing into a 'shooting star,' as it would on entering the earth's atmosphere. There will be no floating dust, no scent, no twilight, no blue sky, no twinkling of the stars. The sky will be always black and the stars will be clearly visible by day as by night. The sun's wonderful corona, which no man on earth, even by seizing every opportunity during eclipses, can hope to see for more than two hours in all, in a long lifetime, will be visible all day. So will the great red flames of the sun.... There will be no life (since) for fourteen days there is continuous night, when the temperature must sink away down towards the absolute cold of space. This will be followed without an instant of twilight by full daylight. For another fourteen days the sun's rays will bear straight down, with no diffusion or absorption of their heat, or light, on the way...."
This is a matter-of-fact fragment out of "The Outline of Science," edited by Professor J. Arthur Thompson; but it would not be easy to say exactly how in its magical effect on the mind it differs from poetry. Indeed, there can hardly be a quicker journey to the comprehension of scientific fact than by way of the imagination. Moonless mountainous Hesper, the Evening Star, is an even lovelier thing to watch shining in the fading rose and green of sunset when we realise that at her most radiant—a radiance that casts an earthly shadow even—it is but a slim crescent of the planet that we see, a planet, too, almost sister in magnitude to the earth, but whose briefer year is of an ardour that might be happiness to fiery sprite and salamander, but would be unendurable to watery creatures like ourselves. Nor could language be used more scientifically (concisely, pregnantly and exactly), than in the words moving, human, mask, in the following sonnet by John Keats—a sonnet written in mortal illness and in immortal sorrowfulness:
Bright star, would I were stedfast as thou art—
Not in lone splendour hung aloft the night
And watching, with eternal lids apart,
Like nature's patient, sleepless Eremite,
The moving waters at their priestlike task
Of pure ablution round earth's human shores,
Or gazing on the new soft-fallen mask