ESSAY XXI. OF ASTRONOMY.
SECTION I.
It can scarcely be imputed to me as profane, if I venture to put down a few sceptical doubts on the science of astronomy. All branches of knowledge are to be considered as fair subjects of enquiry: and he that has never doubted, may be said, in the highest and strictest sense of the word, never to have believed.
The first volume that furnished to me the groundwork of the following doubts, was the book commonly known by the name of Guthrie's Geographical Grammar, many parts and passages of which engaged my attention in my own study, in the house of a rural schoolmaster, in the year 1772. I cannot therefore proceed more fairly than by giving here an extract of certain passages in that book, which have relation to the present subject. I know not how far they have been altered in the edition of Guthrie which now lies before me, from the language of the book then in my possession; but I feel confident that in the main particulars they continue the same(42).
(42) The article Astronomy, in this book, appears to have been written
by the well known James Ferguson.
"In passing rapidly over the heavens with his new telescope, the universe increased under the eye of Herschel; 44,000 stars, seen in the space of a few degrees, seemed to indicate that there were seventy-five millions in the heavens. But what are all these, when compared with those that fill the whole expanse, the boundless field of aether?
"The immense distance of the fixed stars from our earth, and from each other, is of all considerations the most proper for raising our ideas of the works of God. Modern discoveries make it probable that each of these stars is a sun, having planets and comets revolving round it, as our sun has the earth and other planets revolving round him.—A ray of light, though its motion is so quick as to be commonly thought instantaneous, takes up more time in travelling from the stars to us, than we do in making a West-India voyage. A sound, which, next to light, is considered as the quickest body we are acquainted with, would not arrive to us from thence in 50,000 years. And a cannon-ball, flying at the rate of 480 miles an hour, would not reach us in 700,000 years.
"From what we know of our own system, it may be reasonably concluded, that all the rest are with equal wisdom contrived, situated, and provided with accommodations for rational inhabitants.
"What a sublime idea does this suggest to the human imagination, limited as are its powers, of the works of the Creator! Thousands and thousands of suns, multiplied without end, and ranged all around us, at immense distances from each other, attended by ten thousand times ten thousand worlds, all in rapid motion, yet calm, regular and harmonious, invariably keeping the paths prescribed them: and these worlds peopled with myriads of intelligent beings, formed for endless progression in perfection and felicity!"