Résultats Éditeur "HarperAudio" dans Astronomie et science de l’espace

When Charles Darwin finished The Origin of Species, he thought that he had explained every clue but one. Though his theory could explain many facts, Darwin knew that there was a significant event in the history of life that his theory did not explain. During this event, the "Cambrian explosion", many animals suddenly appeared in the fossil record without apparent ancestors in earlier layers of rock. In Darwin's Doubt, Stephen C. Meyer tells the story of the mystery surrounding this explosion of animal life.

By the star physicist and author of multiple #1 Sunday Times bestsellers, a major and definitive narrative work on black holes and how they can help us understand the universe.

In the New York Times bestseller Extraterrestrial, Avi Loeb, the longest serving Chair of Harvard’s Astronomy Department, presented a theory that shook the scientific community: our solar system, Loeb claimed, had likely been visited by a piece of advanced alien technology from a distant star. This provocative and persuasive argument opened millions of minds internationally to the vast possibilities of our universe and the existence of intelligent life beyond Earth.

Before John Glenn orbited the Earth or Neil Armstrong walked on the moon, a group of dedicated female mathematicians known as "human computers" used pencils, slide rules, and adding machines to calculate the numbers that would launch rockets and astronauts into space. Among these problem solvers were a group of exceptionally talented African American women, some of the brightest minds of their generation.

Travelling at almost 18,000 miles per hour - 10 times faster than a rifle bullet - Yuri Gagarin circles the globe in just 106 minutes. From his windows, he sees the Earth as nobody has before, crossing a sunset and a sunrise, crossing oceans and continents, witnessing its beauty and its fragility. While his launch begins in total secrecy, within hours of his landing, he has become a world celebrity - the first human to leave the planet. Beyond tells the thrilling story behind that epic flight on its 60th anniversary.

As the 50th anniversary of the first lunar landing approaches, the award-winning historian and perennial New York Times best-selling author takes a fresh look at the space program, President John F. Kennedy’s inspiring challenge, and America’s race to the moon.

In 1959, the Soviet probe Luna 3 took the first photos of the far side of the Moon. Even in their poor resolution, the images stunned scientists: The far side is an enormous mountainous expanse, not the vast lava plains seen from Earth. Subsequent missions have confirmed this in much greater detail. How could this be, and what might it tell us about our own place in the universe? As it turns out, quite a lot. When the Earth Had Two Moons is an astonishing exploration of planet formation and the origins of life by one of the world’s most innovative planetary geologists.

In this astonishing rediscovery of the final Apollo moon landings, the acclaimed author of Chesapeake Requiem reveals that these extraordinary yet overshadowed missions - distinguished by the use of the revolutionary lunar roving vehicle - deserve to be celebrated as the pinnacle of human adventure and exploration.

What came before the Big Bang, and what exists outside of the universe it created? Until recently, scientists could only guess at what lay past the edge of space-time. However, as pioneering theoretical physicist Laura Mersini-Houghton explains, new scientific tools are now giving us the ability to peer beyond the limits of our universe and to test our theories about what is there. And what we are finding is upending everything we thought we knew about the cosmos and our place in it.

On April 10, 2019, award-winning astrophysicist Heino Falcke presented the first image ever captured of a black hole at an international press conference - a turning point in astronomy that Science magazine called the scientific breakthrough of the year. That photo was captured with the unthinkable commitment of an intercontinental team of astronomers who transformed the world into a global telescope. While this image achieved Falcke’s goal in making a black hole “visible” for the first time, he recognizes that the photo itself asks more questions for humanity than it answers.

Human exploration of Mars is the most ambitious and exciting scientific goal of the 21st century. Few people know as much about this fascinating planet as Dr. Larry Crumpler. As one of the long-term planning leads for the Mars Exploration Rover Project, he helped control the daily communications between NASA and the rovers.

When scientists discovered the first ocean beyond Earth, they had two big questions: “Is it habitable?” and “How do we get there?” To answer the first, they had to answer the second, and so began a vivacious team’s twenty-year odyssey to mount a mission to Europa, the ocean moon of Jupiter. Standing in their way: NASA, the White House, Congress, rivals in academia, and even Jupiter itself. Written with verve, humor, and uncanny empathy, The Mission is an exuberant masterclass in how a few determined cogs can change an entire machine.

In the aftermath of World War II, the United States accelerated the development of technologies that would give it an advantage over the Soviet Union. Airpower, combined with nuclear weapons, offered a formidable check on Soviet aggression. In 1947, the United States Air Force was established. Meanwhile, scientists and engineers were pioneering a revolutionary new type of aircraft which could do what no other machine had ever done: reach mach 1 - a speed faster than the movement of sound - which pilots called "the demon."

Contrary to popular belief, death is not a moment in time, such as when the heart stops beating, respiration ceases, or the brain stops functioning. Death, rather, is a process - a process that can be interrupted well after it has begun. Innovative techniques, such as drastically reducing the patient's body temperature, have proven to be effective in revitalizing both the body and mind, but studies show they are only employed in approximately half of the hospitals throughout the United States and Europe.

Impact argues that Earth would be a lifeless, inhospitable piece of rock without being fortuitously assaulted with meteorites throughout the history of the planet. These bombardments transformed Earth’s early atmosphere and delivered the complex organic molecules that allowed life to develop on our planet.

Using the power of the sun, moon, stars, and planets, this unique guide is filled with engaging exercises that deepen your knowledge of the solar system, help you take necessary pauses every day, and foster a renewed sense of presence in the universe.

Einstein’s Shadow follows a team of elite scientists on a historic mission to take the first picture of a black hole, putting Einstein’s theory of relativity to its ultimate test and helping to answer our deepest questions about space, time, the origins of the universe, and the nature of reality.

We think of space as merely the empty distance between objects, but in reality, it’s a topography of magnetic fields, dark matter, wrinkles, contours, and wells of gravitational gradients that cannot be seen even with the most powerful telescopes. But not being able to see has never stopped us from imagining. Our undeniable curiosity about explaining the universe has led us to conceive of theories of gravity, magnetism, and relativity.