Menu

Blog

Archive for the ‘cosmology’ category: Page 135

Mar 27, 2023

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

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

Year 2022 😗


WASHINGTON, Nov 30 (Reuters) — 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 miniscule 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.

Continue reading “Scientists build ‘baby’ wormhole as sci-fi moves closer to fact” »

Mar 27, 2023

This is what the universe might have looked like after the Big Bang

Posted by in categories: computing, cosmology

Researchers have created a computer simulation of early universe in the epoch after the Big Bang. It’s designed to help them interpret real data in future.

Mar 27, 2023

Humans In The GenAI Loop

Posted by in categories: cosmology, robotics/AI

Generative AI, the technology behind ChatGPT, is going supernova, as astronomers say, outshining other innovations for the moment. But despite alarmist predictions of AI overlords enslaving mankind, the technology still requires human handlers and will for some time to come.

While AI can generate content and code at a blinding pace, it still requires humans to oversee the output, which can be low quality or simply wrong. Whether it be writing a report or writing a computer program, the technology cannot be trusted to deliver accuracy that humans can rely on. It’s getting better, but even that process of improvement depends on an army of humans painstakingly correcting the AI model’s mistakes in an effort to teach it to ‘behave.’

Humans in the loop is an old concept in AI. It refers to the practice of involving human experts in the process of training and refining AI systems to ensure that they perform correctly and meet the desired objectives.

Mar 27, 2023

Scientists hypothesize presence of exoplanets made up of dark matter

Posted by in category: cosmology

The-Vagabond/iStock.

And scientists have been working tirelessly to decode the mystery of dark matter.

Mar 27, 2023

The hunt for black holes older than the universe itself

Posted by in categories: cosmology, physics

Primordial black holes older than the big bang could rewrite cosmology by providing evidence for a previous universe. It’s a wild idea, but some physicists think we’ve got a chance of finding them.

By Bernard Carr

Mar 27, 2023

Computronium universe

Posted by in categories: cosmology, Ray Kurzweil

I read enough to realize it’s in depth enough to make it worthwhile. I’ll finish tomorrow as it’s 10:35 pm and I’m beat. I need to rest for my mother’s cardiac rehab tomorrow. She had a heart attack about a month ago.


Ray Kurzweil discusses having a universe filled with Computronium.

Continue reading “Computronium universe” »

Mar 26, 2023

New LHC experiments enter uncharted territory

Posted by in categories: cosmology, particle physics

Although neutrinos are produced abundantly in collisions at the Large Hadron Collider (LHC), until now no neutrinos produced in such a way had been detected. Within just nine months of the start of LHC Run 3 and the beginning of its measurement campaign, the FASER collaboration changed this picture by announcing its first observation of collider neutrinos at this year’s electroweak session of the Rencontres de Moriond. In particular, FASER observed muon neutrinos and candidate events of electron neutrinos. “Our statistical significance is roughly 16 sigma, far exceeding 5 sigma, the threshold for a discovery in particle physics,” explains FASER’s co-spokesperson Jamie Boyd.

In addition to its observation of neutrinos at a particle collider, FASER presented results on searches for dark photons. With a null result, the collaboration was able to set limits on previously unexplored parameter space and began to exclude regions motivated by dark matter. FASER aims to collect up to ten times more data over the coming years, allowing more searches and neutrino measurements.

FASER is one of two new experiments situated at either side of the ATLAS cavern to detect neutrinos produced in proton collisions in ATLAS. The complementary experiment, SND@LHC, also reported its first results at Moriond, showing eight muon neutrino candidate events. “We are still working on the assessment of the systematic uncertainties to the background. As a very preliminary result, our observation can be claimed at the level of 5 sigma,” adds SND@LHC spokesperson Giovanni De Lellis. The SND@LHC detector was installed in the LHC tunnel just in time for the start of LHC Run 3.

Mar 26, 2023

Scientists discover supermassive black hole that now faces Earth

Posted by in categories: asteroid/comet impacts, cosmology, existential risks

This is a galactic-sized problem. Scientists revealed Tuesday that galaxy PBC J2333.9–2343 has been reclassified after discovering a supermassive black hole that is currently facing our solar system, reports Royal Astronomical Society. Alien-hunting physicist on mission to prove meteorite that hit Earth is extraterrestrial probe Asteroid that could wipe out a city is near.

Read more ❯.

Mar 25, 2023

Peering Inside Realistic Black Holes

Posted by in category: cosmology

Astronomers finally figure out what it’s like inside an actual, spinning black hole — and where exactly it’d kill you.

Mar 25, 2023

Reclassified galaxy is now a supermassive black hole that’s pointing directly at Earth

Posted by in category: cosmology

We don’t want to alarm you, but there’s a black hole pointing Earth squarely in the face.

Scientists have reclassified a galaxy after finding that the supermassive black hole in its centre has changed direction and it is now aiming right at us.