Will we have to rewrite Einstein’s theory of gravity? The DESI experiment could find out.
Category: cosmology – Page 329
The Big Bang theory is so widespread that most people think of it as the way the universe began. However, we’ve yet to prove the Big Bang theory, and there are other models of how the universe began that are vying for the limelight; namely, the Big Bounce theory.
NASA’s Hubble Space Telescope and new mirror technology confirmed a mystery that could lead to a “new physics,” one astrophysicist said.
Science fiction writers love wormholes because they make the impossible possible, linking otherwise unreachable places together. Enter one, and it’ll spit you back out in another locale—typically one that’s convenient for the plot. And no matter how unlikely these exotic black hole relatives are to exist in reality, they tend to fascinate physicists for exactly the same reason. Recently, some of those physicists took the time to ponder what such a cosmic shortcut might look like in real life, and even make a case that there could be one at the center of our galaxy.
As the Big Bang theory goes, somewhere around 13.8 billion years ago the universe exploded into being, as an infinitely small, compact fireball of matter that cooled as it expanded, triggering reactions that cooked up the first stars and galaxies, and all the forms of matter that we see (and are) today.
Just before the Big Bang launched the universe onto its ever-expanding course, physicists believe, there was another, more explosive phase of the early universe at play: cosmic inflation, which lasted less than a trillionth of a second. During this period, matter—a cold, homogeneous goop—inflated exponentially quickly before processes of the Big Bang took over to more slowly expand and diversify the infant universe.
Recent observations have independently supported theories for both the Big Bang and cosmic inflation. But the two processes are so radically different from each other that scientists have struggled to conceive of how one followed the other.
It’s the one aspect of reality we all take for granted: an object exists in the world regardless of whether you’re looking at it.
But theoretical and quantum physicists have been struggling for years with the possibly of a “many worlds” interpretation of reality, which suggests that every time two things could happen, it splits into new parallel realities. Essentially, they think you’re living in one branch of a complex multiverse — meaning that there are a near-infinite number of versions of you that could have made every conceivable alternate choice in your life.
Physicist Sean Carroll from the California Institute of Technology deals with this problem in his new book “Something Deeply Hidden.” In a new interview with NBC, Carroll makes his stance on the matter clear: he thinks the “many worlds” hypothesis is a definite possibility.
By contemplating the full spectrum of scenarios of the coming technological singularity many can place their bets in favor of the Cybernetic Singularity which is a sure path to digital immortality and godhood as opposed to the AI Singularity when Homo sapiens is retired as a senescent parent. This meta-system transition from the networked Global Brain to the Gaian Mind is all about evolution of our own individual minds, it’s all about our own Self-Transcendence. https://www.ecstadelic.net/top-stories/the-ouroboros-code-br…etaphysics #OuroborosCode
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A group of astronomers led by University of California, Davis has obtained new data that suggest the universe is expanding more rapidly than predicted.
The study comes on the heels of a hot debate over just how fast the universe is ballooning; measurements thus far are in disagreement.
The team’s new measurement of the Hubble Constant, or the expansion rate of the universe, involved a different method. They used NASA’s Hubble Space Telescope (HST) in combination with W. M. Keck Observatory’s Adaptive Optics (AO) system to observe three gravitationally-lensed systems. This is the first time ground-based AO technology has been used to obtain the Hubble Constant.
In a theoretical study, physicists propose that perturbations in the orbit of stars near supermassive black holes could be used to detect wormholes.
A new study outlines a method for detecting a speculative phenomenon that has long captured the imagination of sci-fi fans: wormholes, which form a passage between two separate regions of spacetime.
Such pathways could connect one area of our universe to a different time and/or place within our universe, or to a different universe altogether.
A new study outlines a method for detecting a speculative phenomenon that has long captured the imagination of sci-fi fans: wormholes, which form a passage between two separate regions of spacetime.
Such pathways could connect one area of our universe to a different time and/or place within our universe, or to a different universe altogether.
Whether wormholes exist is up for debate. But in a paper published on Oct. 10 in Physical Review D, physicists describe a technique for detecting these bridges.