Could This Be The End Of Voyager 1?

The human race has left a mark on our planet, sometimes through carelessness and sometimes by design, but how permanent are the changes we’ve made? In The World Without Us, science journalist Alan Weisman asks what would happen if the human race vanished overnight. What effects, positive or negative, would our disappearance have on the world? Weisman’s goal is to address humanity’s environmental impact by imagining a world in which nature is allowed to flourish. In many ways, the world that follows us would be significantly different than what came before.

In this guide, we’ll examine Weisman’s portrayal of humanity’s footprint and what Weisman claims would happen if we suddenly disappeared. Also, we’ll look at other views on climate change, nature’s resilience, and the human race’s impact. We’ll list suggestions for how our species might adapt to a greener world, as well as scenarios that might cause our extinction.

What’s out there in the vast reaches of space? Are we alone in the universe? Renowned astronomer Carl Sagan offers some insight into these questions and many more in his widely acclaimed book, Cosmos.

Sagan is a Pulitzer Prize-winning author and perhaps the greatest astronomer of our age. In this book, he provides a comprehensive description of the science, philosophy, and history of astronomical discovery, from ancient Ionia to the time of the book’s publication in 1980.

In this guide, we’ll delve into Sagan’s theories about the possibility of interstellar travel, the search for extraterrestrial life, and man’s quest for understanding the mysteries of the universe. As we go along, we’ll update the information with the most recent scientific discoveries and provide perspectives from other experts in related fields.

Most features of the human body are just complex versions of those in simpler creatures that, at first glance, seem totally unlike us. As professor and paleontologist Neil Shubin explains in Your Inner Fish, understanding how a shark’s head, a reptile’s brain, and a fish’s fins developed makes sense of complicated and confounding human anatomy. Casting new light on the human family tree, Shubin explains how ancient fossils, embryos, and DNA all provide clues to a story of human development stretching back 3.5 billion years.

Why does life work the way it does? Are life’s features the product of random genetic mutations, or did organisms have to evolve a certain way to overcome specific physical and chemical challenges? In The Vital Question, Nick Lane argues that genetics can’t give us the answer by itself. To explain the origin of life, we have to understand how cells make use of energy and what environmental conditions gave rise to the molecular power plants found in every living thing.

In this guide, we’ll explore the biochemistry of cells and how it may have developed on the very young Earth. We’ll explain why Lane believes all complex life emerged from a single instance of symbiosis between two very different single-celled creatures. We’ll expand on fundamentals of biology and genetics, discuss alternate views to some of Lane’s proposals, and point to the directions research is now taking to gain a fuller understanding of life’s origins.