Please note: This is a companion version & not the original book. Book Preview: #1 The next habitable planet is Mars, which is the most survivable other planet in our solar system. But that s not saying much. Other planets are more horrible. With the sun high in the sky, you would enjoy temperatures as high as 68 F on Mars, but if you exited the ship at one of the poles, the temperature could be less than -200 F.#2 Exoplanets, or planets outside of our solar system, seem to offer the possibility of a livable atmosphere and surface. However, before we pop the champagne and pour our savings into Space X, we should consider what it takes to get to another planet.#3 We can t know what life would be like on Proxima Centauri b, or what the place even looks like. But we can imagine that it s a perfectly habitable place, with warm winds and a liquid ocean, and strange, vivid landscapes of rock and vegetation.#4 The trip to Proxima Centauri b, the closest exoplanet to Earth, would take more than 130, 000 years. We wouldn t be able to travel at that speed, and human life spans are too short for the trip. We would need to put ourselves in a coma for the journey.
来自同一作者的更多电子书 / 编辑
3,570 此类电子书
