At last everything had changed; since Newton astronomy had come of age and occupied its rightful place within the wide range of the sciences, abandoning her dependence on esotericism to which astrology had relegated her. At last it was possible to accurately predict the behavior of celestial objects, their harmonious movements in space, its dependencies and interrelations. Finally we could observe beyond what is allowed by the simple eye sight to scrutinize the sky like never before it had been possible before, where the new instruments allowed us to achieve it and, what is more important still, they provided scientists with the possibility of keep wondering what those celestial objects are like and What is beyond of. The advancement of astronomy had already engines ready, curiosity fueled them,Some famous comets, besides the Halley, are the great comet observed in 1577 by Tycho Brahe for seventy-four days; the great comet of 1744, very bright and with the peculiarity of showing six queues; the great comet of 1811, whose vision lasted almost nine months, and Comet Borrelly, discovered in 1904 and that on his return to the vicinity of the Earth, in 2001, was closely followed and photographed by the Deep spacecraft Space 1. In late 1865 Ernst Tempel, and in early 1866 Horace Parnell Tuttle discovered the passage of a comet, the Tempel-Tuttle, with a cycle of thirty and in 1758 contemplates what would be the first object of his catalog, the M1, which today we know as the nebula of the Crab, and that is the rest of the explosion of a supernova. Later, in 1764, Messier, observing the constellation Andromeda, warns that the little cloud referenced by the Persian astronomer Azophi, of which we talked about earlier, it actually appears to be a collodion. Using this material, the Scottish astronomer David Gill observed the 1882 comet’s passage by photographing it from his telescope. The result was amazing; In addition to a magnificent image of the comet, it was possible to observe in the photograph the posterior area of ​​the sky that included thousands of invisible stars in the observation ocular. A photographic plate attached to a telescope and focused for hours on a certain area of ​​the sky reveals images of objects whose light reaches Earth so weakened that they could never be seen otherwise. This was the beginning of Astrophotography.

his telescope on the Martian surface for nearly fifteen years, he drew her in detail and exposed her discoveries in three books, Mars (1895), Mars and its canals (1906), and Mars as the abode of life (1908). The ideas of Lowell ventured a planet with water in the polar caps and lack of it in the desert areas that they covered most of the planet’s surface. Beings smart people would be responsible for the construction channels to transport water from one to another, thus allowing the persistence of Martian life.