Comet, Revised

By Carl Sagan, Ann Druyan

WHAT ARE those sleek viewers TO OUR SKIES? WE NOW understand THAT they create either existence AND demise AND educate US approximately OUR ORIGINS.

Comet starts with a panoramic trip via area astride a comet. Pulitzer Prize-winning astronomer Carl Sagan, writer of Cosmos and speak to, and author Ann Druyan discover the starting place, nature, and way forward for comets, and the unique myths and portents hooked up to them. The authors exhibit how comets have spurred the various nice discoveries within the heritage of technological know-how and lift exciting questions about those fantastic viewers from the interstellar dark.

Were the fates of the dinosaurs and the origins of people tied to the wanderings of a comet? Are comets the development blocks from which worlds are formed?

Lavishly illustrated with pictures and in particular commissioned full-color work, Comet is a charming experience, crucial for an individual who has ever gazed up on the heavens and puzzled why.

"SIMPLY THE BEST."

The instances of London

"FASCINATING, EVOCATIVE, INSPIRING."

The Washington Post

"COMET HUMANIZES technology. a gorgeous, attention-grabbing BOOK."

United Press International

"MASTERFUL . . . technological know-how, POETRY, AND IMAGINATION."

The Atlanta magazine & Constitution

From the exchange Paperback version.

Show description

By Carl Sagan, Ann Druyan

WHAT ARE those sleek viewers TO OUR SKIES? WE NOW understand THAT they create either existence AND demise AND educate US approximately OUR ORIGINS.

Comet starts with a panoramic trip via area astride a comet. Pulitzer Prize-winning astronomer Carl Sagan, writer of Cosmos and speak to, and author Ann Druyan discover the starting place, nature, and way forward for comets, and the unique myths and portents hooked up to them. The authors exhibit how comets have spurred the various nice discoveries within the heritage of technological know-how and lift exciting questions about those fantastic viewers from the interstellar dark.

Were the fates of the dinosaurs and the origins of people tied to the wanderings of a comet? Are comets the development blocks from which worlds are formed?

Lavishly illustrated with pictures and in particular commissioned full-color work, Comet is a charming experience, crucial for an individual who has ever gazed up on the heavens and puzzled why.

"SIMPLY THE BEST."

The instances of London

"FASCINATING, EVOCATIVE, INSPIRING."

The Washington Post

"COMET HUMANIZES technology. a gorgeous, attention-grabbing BOOK."

United Press International

"MASTERFUL . . . technological know-how, POETRY, AND IMAGINATION."

The Atlanta magazine & Constitution

From the exchange Paperback version.

Show description

Quick preview of Comet, Revised PDF

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After a sunlight fireball falls, a path of darkish smoke is typically obvious. through definition, a meteor doesn't strike the floor. in the event you keep on with the streak towards the horizon, rush over to the subsequent county and certainly get better a rock newly fallen from the sky, it's not a meteor, yet a meteorite. The suffix means that meteorites come from meteors, and hence are smaller than meteors—which, usually, is unfaithful. that giant gap within the flooring in Arizona is termed Meteor Crater—but the article that dug the crater used to be a lot too gigantic to be a meteor. It used to be a meteorite. Meteorites, although, are items of different worlds. it's a average bet that meteors also are. “The meteors whisper greenly overhead” is a stunning and evocative line by way of the yankee author Loren Eiseley. in truth, meteors whisper in simple terms to themselves. They streak too silently throughout the higher air to be heard down right here. Like comets, and kids in Victorian dramas, they're noticeable yet by no means heard. Meteorites—fragments chipped off the asteroids or the Moon or Mars or extinct comets—can be heard; they and the fireballs produce every so often a sonic increase or a deep rumbling roar, the one sounds made by way of one other celestial physique that Earthbound ears unaided have ever heard. Daimachus, in his Treatise on faith … says that … for seventy-five days continuously, there has been obvious within the heavens an enormous fiery physique, as though it have been a flaming cloud, now not resting, yet carried approximately with a number of problematic and damaged hobbies, in order that the flaming items, which have been damaged off through this commotion and operating approximately, have been carried in all instructions, shining as falling stars do. but if it afterwards got here all the way down to the floor during this district, and the folks of where convalescing from their worry and astonishment got here jointly, there has been no hearth to be obvious, neither any signal of it; there has been just a stone mendacity, substantial certainly, yet which bore no percentage, to talk of, to that fiery compass. it truly is take place that Daimachus must have indulgent hearers. —PLUTARCH (CA. forty six TO CA. one hundred twenty A. D. ), LYSANDER Prescientific cultures held meteors—like comets—to be portents of anything or different, often drawing close evil. extra hardly ever, different factors are proffered. In West Africa, there are traditions which carry meteors and meteorites to be a type of sunlight excrement. just like the concept of a meteor as a celeb falling to Earth, this educating of the Atak-pame humans has greater than a grain of fact to it, as we will see. The Herero name them “buzzing stones,” which without doubt displays a few direct adventure with a meteor fall. In different traditions, the meteors are the souls of the useless returning to Earth to be reborn; or a thunder ax; or the heralds of Mbomvei, the preferrred being. The Jukun carry meteor is a present of meals carried from one superstar to another—an extraterrestrial take-out provider. in line with the Kamba, a meteor is a type of royal ensign, signifying that the beings who live to tell the tale the celebrities are this present day vacationing the Earth. In Islamic Africa, a taking pictures big name was defined as a dagger thrown by means of angels to thwart these genies who aspire to ascend to heaven.

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