Showing results for "Comets" in Science & Engineering

Comet begins with a breathtaking journey through space astride a comet. Pulitzer Prize-winning astronomer Carl Sagan, author of Cosmos and Contact, and writer Ann Druyan explore the origin, nature, and future of comets, and the exotic myths and portents attached to them. The authors show how comets have spurred some of the great discoveries in the history of science and raise intriguing questions about these brilliant visitors from the interstellar dark.

Were the fates of the dinosaurs and the origins of humans tied to the wanderings of a comet?

Since the dawn of civilization, humans had believed comets were evil portents. In 1705, Edmond Halley liberated humanity from these primordial superstitions, proving that Newtonian mechanics rather than the will of the gods brought comets into our celestial neighborhood. Despite this scientific advance, when Halley's Comet returned in 1910, newspapers gleefully provoked a global hysteria that unfolded with tragic consequences. Richard J. Goodrich examines the 1910 appearance of Halley's Comet and the ensuing frenzy sparked by media manipulation, bogus science, and outright deception.

Bienvenue sur « Les huiles essentielles, de Vous à Nous » Le podcast à deux voix qui raconte les secrets des huiles essentielles, depuis la graine jusqu’à vous. Nous sommes Camille Comet, Pharmacienne Aromathérapeute, et Julien Martre, producteur d'huiles essentielles biologiques d'exception. Dans cette émission, nous allons vous dévoiler tous nos secrets pour prendre soin de vous avec les huiles essentielles. L’idée, c’est d’essayer de comprendre ce qui se cache derrière ces flacons, et de faire bouger les choses pour une aromathérapie éthique et écologique. Suivez-nous !

Icy, rocky, sometimes dusty, always mysterious – comets and asteroids are among the Solar System's very oldest inhabitants, formed within a swirling cloud of gas and dust in the area of space that eventually hosted the Sun and its planets. Locked within each of these extra-terrestrial objects is the 4.6-billion-year wisdom of Solar System events, and by studying them at close quarters using spacecraft we can coerce them into revealing their closely-guarded secrets. This offers us the chance to answer some fundamental questions about our planet and its inhabitants.