Origins: Fourteen Billion Years of Cosmic Evolution
Neil deGrasse Tyson
Language: English
Pages: 352
ISBN: 0393350398
Format: PDF / Kindle (mobi) / ePub
“Who can ask for better cosmic tour guides to the universe than Drs. Tyson and Goldsmith?” ―Michio Kaku, author of Hyperspace and Parallel Worlds
Our true origins are not just human, or even terrestrial, but in fact cosmic. Drawing on recent scientific breakthroughs and the current cross-pollination among geology, biology, astrophysics, and cosmology, ?Origins? explains the soul-stirring leaps in our understanding of the cosmos. From the first image of a galaxy birth to Spirit Rover's exploration of Mars, to the discovery of water on one of Jupiter's moons, coauthors Neil deGrasse Tyson and Donald Goldsmith conduct a galvanizing tour of the cosmos with clarity and exuberance. 32 pages of color illustrations
The Practical Astronomer's Deep-sky Companion
The Making of History's Greatest Star Map (Astronomers' Universe)
The Andromeda Galaxy and the Rise of Modern Astronomy (Astronomers' Universe)
Visual Astronomy of the Deep Sky
Meteoroid: An object of rock or metal, or a metal-rock mixture, smaller than an asteroid, moving in an orbit around the Sun, part of the debris left over from the formation of the solar system or from collisions between solar-system objects. meter: The fundamental unit of length in the metric system, equal to approximately 39.37 inches. Milky Way: The galaxy that contains the Sun and approximately 300 billion other stars, as well as interstellar gas and dust and a huge amount of.
Universes in their minds. One additional feature deserves emphasis, however. The inflationary model makes a straightforward, testable prediction: space in the universe should be flat, neither positively nor negatively curved, but just as flat as our intuition imagines it. According to this theory, the flatness of space arises from the enormous expansion that occurred during the inflationary epoch. Picture yourself, in analogy, on the surface of a balloon, and let the balloon expand by a.
Galaxy also has the honor of having revealed the closest and brightest supernova to appear during the past three centuries, Supernova 1987A, which must have actually exploded about 160,000 B.C. for its light to reach Earth in 1987. Until the 1960s, astronomers were content to classify almost all galaxies as spiral, barred spiral, ellipitical, or irregular. They had right on their side, since more than 99 percent of all galaxies fit one of these classes. (With one galactic class called.
Which he speculated that “probably all of the organic beings which have ever lived on this Earth have descended from some one primordial form,” Darwin wrote to his friend Joseph Hooker that It is often said that all the conditions for the first production of a living organism are now present, which could ever have been present. But if (and oh! what a big if!) we could conceive in some warm little pond, with all sorts of ammonia and phosphoric salts, light, heat, electricity, &c., present,.
That form the building blocks of living organisms. The Miller-Urey experiment also made some of the modestly complex molecules called nucleotides, which provide the key structural element for DNA, the giant molecule that carries instructions for forming new copies of an organism. Even so, a long path remains before life emerges from experimental laboratories. An enormously significant gap, so far unbridged by human experiment or invention, separates the formation of amino acids—even if our.