検索キーワード： 制作 "Tantor Media" 天文学・宇宙

Black holes are a constant source of fascination to many due to their mysterious nature. This Very Short Introduction audiobook addresses a variety of questions, including what a black hole actually is, how they are characterized and discovered, and what would happen if you came too close to one. 

We've pinpointed the destination, refined the technology, designed the habitat. Are we forgetting something? A timely reminder that it's not just rocket science, this book explores the all-too-human issues raised by the prospect of settling in outer space. Accordingly, her work highlights the complex ethical challenges that accompany any other-worldly venture—questions about the environment, labor rights, and medical ethics, among others.

Sixty-six million years ago an asteroid as large as Mt. Everest hit what is now the Yucatan Peninsula at a speed ten times faster than the fastest rifle bullet. Debris from the impact blew into space, re-entered the atmosphere as a swarm of shooting stars that burned the global forests and grasslands, leaving behind a thin global layer containing rock from the asteroid and from Mexico, and smoke from the fires. This layer marks one of the greatest extinctions in Earth history including not just dinosaurs, but also fish, plankton, ammonites, and plants making up about 75% of the known species.