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Archive for the ‘cosmology’ category: Page 309

Oct 28, 2019

If There’s a Wormhole Hiding in Our Galaxy, Could We Really Find It?

Posted by in categories: cosmology, physics

Wormholes, passageways that connect one universe or time to another, are still only theoretical — but that doesn’t mean physicists aren’t looking for them. In a new study, researchers describe how to find wormholes in the folds of our galaxy.

These hypothetical passageways, created by folding a region of space like a piece of paper, are predicted by Einstein’s theory of general relativity. But they require extreme gravitational conditions, such as those around supermassive black holes.

In the new study, two researchers came up with a method to search for wormholes close to home, around the Milky Way’s central, supermassive black hole, called Sagittarius A*. If a wormhole were to exist around Sagittarius A*, the stars on one side of the passage would be influenced by the gravity of stars on the other side, the researchers said.

Oct 28, 2019

Dark energy: new experiment may solve one of the universe’s greatest mysteries

Posted by in category: cosmology

Will we have to rewrite Einstein’s theory of gravity? The DESI experiment could find out.

Oct 28, 2019

The Big Bounce: Why our universe might be eternal

Posted by in category: cosmology

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.

Oct 27, 2019

The universe is expanding faster than scientists thought, a study confirms — a ‘crisis in cosmology’ that could require a ‘new physics’

Posted by in categories: cosmology, physics

NASA’s Hubble Space Telescope and new mirror technology confirmed a mystery that could lead to a “new physics,” one astrophysicist said.

Oct 27, 2019

There’s a chance the black hole at the center of our galaxy is actually a wormhole

Posted by in categories: cosmology, physics

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.

Oct 25, 2019

Physicists simulate critical ‘reheating’ period that kickstarted the Big Bang

Posted by in categories: cosmology, physics

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.

Oct 25, 2019

This Physicist Believes There Are Countless Parallel Universes

Posted by in categories: cosmology, quantum physics

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.

Oct 25, 2019

The Ouroboros Code: Bridging Advanced Science and Transcendental Metaphysics

Posted by in categories: biological, cosmology, ethics, existential risks, genetics, nanotechnology, neuroscience, quantum physics, robotics/AI, science, singularity, transhumanism, virtual reality

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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Oct 24, 2019

A crisis in cosmology: New data suggests the universe expanding more rapidly than believed

Posted by in category: cosmology

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.

Oct 24, 2019

Be the first to comment on “How to Spot a Wormhole – Physicists Describe a Technique for Detecting Spacetime Bridges”

Posted by in categories: cosmology, physics

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.