Resultados para "Becky" en Astronomía y espacio

Rédigés par Becky Smethurst, astrophysicienne à l'université d'Oxford, les dix petits textes qui composent ce livre vous guideront à travers les galaxies et les trous noirs, et vous raconteront pourquoi la matière noire est l'une des énigmes les plus fascinantes du cosmos. Vous apprendrez...

For half a century, cosmology has relied on two invisible ingredients to explain the universe: dark matter, a substance that has never been detected despite decades of experimental search, and dark energy, a repulsive force whose physical nature remains entirely unknown. Together, they are said to constitute ninety-five percent of the cosmos. The remaining five percent—ordinary atoms, light, everything we have ever touched or measured—is treated as a minor addendum to a universe made mostly of darkness. This textbook presents a different cosmology. It is not speculative.

The iron in your blood was forged in the nuclear furnace of a dying star. The gold in your jewelry was born in the collision of neutron stars so violent it sent ripples through spacetime itself. The carbon in your DNA survived a stellar explosion and a billion-year journey through space before becoming part of you. Born from Catastrophe reveals the extraordinary truth behind these statements: we are not just made of stardust, but of stardust created through the most violent events in the universe.

This audio edition is narrated with dazzling enthusiasm by the author, Dr Becky Smethurst. Right now, you are orbiting a black hole. The Earth orbits the Sun, and the Sun orbits the centre of the Milky Way: a supermassive black hole, the strangest and most misunderstood phenomenon in the galaxy...