Stephen Hawking's Final Book Says There's 'No Possibility' of God in Our Universe | Live ScienceFrom his desk at Cambridge University and beyond, Stephen Hawking sent his mind spiraling into the deepest depths of black holes, radiating across the endless cosmos and swirling back billions of years to witness time's first breath. He viewed creation as a scientist, and when he was called to discuss creation's biggest puzzles — Where do we come from? What is our purpose? Are we alone? Hawking's answer — compiled from decades of prior interviews, essays and speeches with the help of his family, colleagues and the Steven Hawking Estate — should come as no surprise to readers who have followed his work, er, religiously.
Is Gravity An Illusion? - Space Time - PBS Digital Studios
Researcher shows that black holes do not exist
September 24, Black holes have long captured the public imagination and been the subject of popular culture, from Star Trek to Hollywood. They are the ultimate unknown — the blackest and most dense objects in the universe that do not even let light escape. And as if they weren't bizarre enough to begin with, now add this to the mix: they don't exist. By merging two seemingly conflicting theories, Laura Mersini-Houghton, a physics professor at UNC-Chapel Hill in the College of Arts and Sciences, has proven, mathematically, that black holes can never come into being in the first place.
Read more. The other forces seem to have strengths that are roughly comparable with each other — but again gravity breaks the rule. Following the big bang, if the expansion of space had overwhelmed the pull of gravity in the newborn universe, stars, galaxies and humans would never have formed. Controlling gravity is a science fiction mainstay, but what hope is there of sidestepping the force in the real world? Bridging the gap between quantum mechanics and the theory of relativity might help tie gravity into the equation.
Gravity from Latin gravitas , meaning 'weight'  , or gravitation , is a natural phenomenon by which all things with mass or energy —including planets , stars , galaxies , and even light  —are brought toward or gravitate toward one another. On Earth , gravity gives weight to physical objects , and the Moon 's gravity causes the ocean tides. The gravitational attraction of the original gaseous matter present in the Universe caused it to begin coalescing , forming stars —and for the stars to group together into galaxies—so gravity is responsible for many of the large-scale structures in the Universe. Gravity has an infinite range, although its effects become increasingly weaker on farther objects. Gravity is most accurately described by the general theory of relativity proposed by Albert Einstein in which describes gravity not as a force , but as a consequence of the curvature of spacetime caused by the uneven distribution of mass. The most extreme example of this curvature of spacetime is a black hole , from which nothing—not even light—can escape once past the black hole's event horizon.