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Archive for the ‘cosmology’ category: Page 164

Dec 3, 2022

Physicists create ‘holographic wormhole’ inside quantum computer

Posted by in categories: computing, cosmology, quantum physics

This would be great for teleporting objects for shipping across the planet or cosmos eventually. 😀


Scientists have created a “holographic wormhole” inside a quantum computer for the first time.

The pioneering experiment allows researchers to study the ways that theoretical wormholes and quantum physics interact, and could help solve some of the most difficult and perplexing parts of science.

Continue reading “Physicists create ‘holographic wormhole’ inside quantum computer” »

Dec 2, 2022

Dark Matter Could Cause Excess Optical Background

Posted by in categories: cosmology, evolution, particle physics

Axions that decay into photons could account for visible light that exceeds what’s expected to come from all known galaxies.

If you could switch off the Milky Way’s stars and gaze at the sky with a powerful telescope, you’d see the cosmic optical background (COB)—visible-wavelength light emitted by everything outside our Galaxy. Recent studies by the New Horizons spacecraft—which, after its Pluto flyby, has been looking further afield—have returned the most precise measurements of the COB yet, showing it to be brighter than expected by a factor of 2. José Bernal and his colleagues at Johns Hopkins University in Maryland propose that this excess could be caused by decaying dark matter particles called axions [1]. They say that their model could be falsified or supported by future observations.

Comparing COB measurements to predictions provides a tool for testing hypotheses about the structure of the Universe. But measuring the COB is very difficult due to contamination by diffuse light from much nearer sources, especially sunlight scattered by interplanetary dust. Observing from the edge of our Solar System, New Horizons should be unaffected by most of this contamination, making the measured excess brightness a tool for improving our understanding of galaxy evolution.

Dec 2, 2022

Scientists Just Revealed That Advanced Civilizations Could Be Doing This To Black Holes

Posted by in category: cosmology

https://www.youtube.com/watch?v=UT07QaPDxos

Dec 2, 2022

Scientists Spot Black Hole Energy Beam as Bright as 1,000 Trillion Suns Pointed at Earth

Posted by in categories: cosmology, particle physics

So-called relativistic jets of energetic particles are stunning, destructive spectacles, and this one was “unprecedented.”

Dec 2, 2022

How to Build A Time Machine — Paul Davies

Posted by in categories: cosmology, space travel, time travel

Time travel makes great science fiction, but can it really be done? Travel into the future is already a reality, but visiting the past is a much tougher proposition, and may require fantastic resources such as a wormhole in space. Nevertheless, if going back in time is allowed, even in principle, then what about all those paradoxes that make time travel stories so intriguing?

Paul Davies is a physicist, cosmologist and astrobiologist at Arizona State University, where he is Director of the Beyond Center for Fundamental Concepts in Science. He is the author of many books, including “How to Build a Time Machine” and, most recently, “The Eerie Silence: are we alone in the universe?”

Dec 2, 2022

Did physicists create a wormhole in a quantum computer?

Posted by in categories: computing, cosmology, quantum physics

An unusual teleportation experiment uses ordinary quantum physics, but was inspired by tunnels in an exotic ‘toy universe’.

Dec 1, 2022

Wormhole simulated in quantum computer could bolster theory that the universe is a hologram

Posted by in categories: computing, cosmology, holograms, quantum physics

Quantum experiment conducted on Google’s Sycamore 2 computer transferred data across two simulated black holes, adding weight to the holographic principle of the universe.

Dec 1, 2022

Volunteers are using a Tinder-like app to help build the world’s largest 3D map of the cosmos

Posted by in category: cosmology

Swipe right to uncover the mysteries of dark energy.

A group of more than 10,000 amateur astronomers spread out over 85 countries has identified roughly 240,000 galaxies over the last two years. Now, the Dark Energy Explorers group aims to recruit even more volunteers and take its work to the next level with a project that could shed new light on the mysterious nature of dark energy, a press statement reveals.

To do so, they must help build the most extensive 3D map of the cosmos by using an app that functions surprisingly like the popular dating app Tinder.

Continue reading “Volunteers are using a Tinder-like app to help build the world’s largest 3D map of the cosmos” »

Dec 1, 2022

Scientists create ‘baby’ wormhole as sci-fi moves closer to fact

Posted by in categories: computing, cosmology, quantum physics, space travel

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In science fiction – think films and TV like “Interstellar” and “Star Trek” – wormholes in the cosmos serve as portals through space and time for spacecraft to traverse unimaginable distances with ease. If only it were that simple.

Scientists have long pursued a deeper understanding of wormholes and now appear to be making progress. Researchers announced on Wednesday that they forged two minuscule simulated black holes – those extraordinarily dense celestial objects with gravity so powerful that not even light can escape – in a quantum computer and transmitted a message between them through what amounted to a tunnel in space-time.

Dec 1, 2022

A Black Hole Shot a Jet at the Speed of Light Towards Earth

Posted by in category: cosmology

It’s an “extremely rare phenomenon” that sheds light on black hole mysteries.