Mostrando títulos en Astronomía y Ciencia Espacial

We've all asked ourselves the question. It's impossible to look up at the stars and NOT think about it: Are we alone in the universe? Books, movies, and television shows proliferate that attempt to answer this question and explore it. In Out There, Space.com senior writer Dr. Michael Wall treats that question as merely the beginning, touching off a wild ride of exploration into the final frontier. He considers, for instance, the myriad of questions that would arise once we do discover life beyond Earth (an eventuality which, top NASA officials told Wall, is only drawing closer).

On February 1, 2003, Columbia disintegrated on reentry before the nation's eyes, and all seven astronauts aboard were lost. Author Mike Leinbach was a key leader in the search and recovery effort as NASA, FEMA, the FBI, the US Forest Service, and dozens more federal, state, and local agencies combed an area of rural east Texas the size of Rhode Island for every piece of the shuttle and her crew they could find. Assisted by hundreds of volunteers, it would become the largest ground search operation in US history.

Stephen Hawking not only unraveled some of the universe's greatest mysteries but also believed science plays a critical role in fixing problems here on Earth. Now, as we face immense challenges on our planet - including climate change, the threat of nuclear war, and the development of artificial intelligence - he turns his attention to the most urgent issues facing us. Will humanity survive? Should we colonize space? Does God exist? These are just a few of the questions Hawking addresses in this wide-ranging, passionately argued final book from one of the greatest minds in history.

Our true origins are not only human, or even terrestrial, but in fact cosmic. Drawing on recent scientific breakthroughs and cross-pollination among geology, biology, astrophysics, and cosmology, Origins illuminates the soul-stirring leaps in our understanding of the cosmos. This newly revised and updated edition features such startling discoveries as the more than 5,000 newly detected exoplanets that shed light on the origins of and possibilities for life in the cosmos.

Given the fact that there are perhaps 400 billion stars in our galaxy alone and perhaps 400 billion galaxies in the universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. The sheer enormity of the numbers almost demands that we accept the truth of this hypothesis. Why, then, have we encountered no evidence, no messages, no artifacts of these extraterrestrials?

The moon contains a wealth of natural resources. So, as the Earth's supplies have begun to dwindle, it is no surprise that the world's superpowers and wealthiest corporations have turned their eyes to the stars. As this new Space Race begins, A.C. Grayling asks: who, if anyone, owns the moon? Or Mars? Or other bodies in near space? And what do those superpowers and corporations owe to Planet Earth and its inhabitants as a whole?

Hawking takes us on a fascinating journey through the telescopic lens of modern physics to gain a new glimpse of the universe--the nature of black holes, the space-time continuum, and new information about the origin of the universe. He uses this scientific basis to come up with a "unified theory of everything" that the author claims will be "the ultimate triumph of human reason."

"Imagine if a Martian showed up, all big ears and big nose like a child’s drawing, and he asked to be baptized. How would you react?" Pope Francis posed that question - without insisting on an answer! - to provoke deeper reflection about inclusiveness and diversity in the Church. But it's not the first time that question has been asked.

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.

CIA Project OXCART, Project Gusto produced the program code-named Oxcart to develop the stealthy A-12 Archangel as a new U-2 follow-on aircraft. Under CIA Project Oxcart, the stealthy A-12 Archangel was flight-tested at Area 51, Nevada, under a shroud of secrecy. Flying at 95,000 feet and 2,221 mph or Mach 3.35, the A-12 was the fastest, highest-flying jet-powered, piloted aircraft ever, faster than the Air Force's SR-71, who officially holds the speed record. Selecting a place called Area 51 in Nevada and beneath a shroud of secrecy, the Central Intelligence Agency first flew the U-2, the ...

What forces molded the universe? Are those forces still at work, removing, changing, or adding heavenly bodies even as we gaze upward? Will humanity, and Earth itself, one day be gone? Are we alone? In an era when science journalism is perhaps more thorough and ambitious than ever before, fascinating explorations of questions like these seem available to us almost every day - provided we have a working understanding of the scientific theories on which they're based.

Signs are meant to point us toward something: Jesus. Story in the Stars takes an in-depth look at the Bible and all the signs God mapped out through constellations, planets, and even the way the Earth is tilted. We are uniquely designed by God, and he loves us so much that he ensured a way for all inhabitants of the Earth, through all of time, to see the messages of salvation and redemption that he painted in the stars.

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 scorching summer of 1878, with the Gilded Age in its infancy, three tenacious and brilliant scientists raced to Wyoming and Colorado to observe a rare total solar eclipse. One sought to discover a new planet. Another - an adventuresome female astronomer - fought to prove that science was not anathema to femininity. And a young megalomaniacal inventor, with the tabloid press fast on his heels, sought to test his scientific bona fides and light the world through his revelations.

Time moves forward, not backward---everyone knows you can't unscramble an egg. In the hands of one of today's hottest young physicists, that simple fact of breakfast becomes a doorway to understanding the Big Bang, the universe, and other universes, too. In From Eternity to Here, Sean Carroll argues that the arrow of time, pointing resolutely from the past to the future, owes its existence to conditions before the Big Bang itself---a period of modern cosmology of which Einstein never dreamed.

A stunning memoir from the astronaut who spent a record-breaking year aboard the International Space Station - a candid account of his remarkable voyage, of the journeys off the planet that preceded it, and of his colorful formative years. A natural storyteller and modern-day hero, Kelly has a message of hope for the future that will inspire for generations to come. Here, in his personal story, we see the triumph of the human imagination, the strength of the human will, and the boundless wonder of the galaxy.

On October 4, 1957, the Soviet Union launched Sputnik I, and the space race was born. Desperate to beat the Russians into space, NASA put together a crew of the nation's most daring test pilots: the seven men who were to lead America to the moon. The first into space was Alan Shepard; the last was Deke Slayton, whose irregular heartbeat kept him grounded until 1975. They spent the 1960s at the forefront of NASA's effort to conquer space, and Moon Shot is their inside account of what many call the 20th century's greatest feat - landing humans on another world.

Today, we take for granted that a telescope allows us to see galaxies millions of light years away. But before its invention, people used nothing more than their naked eye to fathom what took place in the visible sky. So how did four men in the 1500s - of different nationality, age, religion, and class - collaborate to discover that the Earth revolved around the Sun? With this radical discovery that went against the Church, they created our contemporary world. Heaven on Earth is an intimate examination of this scientific family.

More than 30 years ago, Frank White coined the term "overview effect", to describe the cognitive shift in awareness that results from the experience of viewing Earth from orbit or the moon. He found, that with great consistency, this experience profoundly affects space travelers' worldviews - their perceptions of themselves and our planet and our understanding of the future. White found that astronauts know from direct experience what the rest of us know only intellectually: We live on a planet that is like a natural spaceship moving through the universe.

It was Christmas Eve 1968. And the astronauts of Apollo 8 - Commander Frank Borman, Jim Lovell, and Bill Anders - were participants in a mission that took them faster (24,000 mph) and farther from the Earth (240,000 miles) than any human had ever traveled. Apollo 8 was the mission that broke humanity's absolute bond to the Earth: it was the first manned vehicle to leave the Earth's orbit. Confined within a tiny spaceship, the astronauts were aided in their journey by a computer less powerful than one of today's handheld calculators.