But another, and (to our mind) more satisfactory, explanation of these stellar phenomena, may be hazarded in this connection: There are, for instance, in the Milky-way, among the more brilliant clusters of stars, dark granular spots, of greater or less magnitude, in which the most powerful telescopes show no glints or traces of stars. They are among Humboldt's smaller "fissures or chasms in the heavens," in which he asserts that there is a great paucity of stars, or none at all. Now, if one of these thick stellar clusters, which show to the naked eye as a single star, should, by the combined cosmical movements of our sun-system and the stellar group in question, pass into the field of one of these small rents or "fissures" in the galactic curtain--that lying in front of the stellar cluster--it would immediately show as a star of possibly the first magnitude, and would continue to shine as a star of that magnitude so long as it remained in the field of the narrow rent or fissure. It would shine out suddenly like a star through a rift in the clouds of a dark night, and disappear as soon as it had traversed, or apparently traversed, the rift in question. This galactic curtain, it should be borne in mind, is made up of 18,000,000 of stars, or sun-systems, and not less than 720,000,000 dark cosmical bodies revolving about their respective centres of gravity. If the "nebular theory" of the universe be true, this is unquestionably the exact condition of things in the Milky-way. Of the more distant stars in this crowded galaxy, we can only catch, even in the telescopic field, mere glints of light as the intervening swarms of stellar and planetary worlds thicken in the foreground and shut out the more distant view. It is only through these rents and fissures in this great galactic curtain that the brighter stellar clusters beyond can ever be seen; and these glints of far distant light, showing dimly through this curtain, may account for the peculiar _milky_ appearance of the galaxy, arising from the loss of chromatic power in the full beams themselves. It was undoubtedly through one of these rents in the galactic curtain that the condensed starry cluster of Tycho Brahe suddenly made its appearance in the outer fringes of the Milky-way, and remained visible for a period of seventeen months. End of the Project Gutenberg EBook of Life: Its True Genesis, by R. W. Wright