Ancient Star Seen Zooming Through Space at 600 Kilometers Per Second

(24-07-2025, 02:09 PM)Tee tiong huat Wrote:  Scientists have achieved a significant breakthrough by demonstrating quantum teleportation between two quantum computers for the first time. This accomplishment, achieved by researchers at University of Oxford, involves teleporting logical quantum gates across a network link, enabling distributed quantum computing. The experiment, detailed in Nature, utilized quantum entanglement to transfer information between processors, opening new possibilities for scalable quantum systems.

Applications: Next stage awaiting to advancement has on potential to lead to the advane of development of powerful quantum supercomputers, a
new avenues for quantum
*
>>communication Tongue Clapping Rotfl
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https://www.ox.ac.uk/news/2025-02-06-fir...ers-closer
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By interconnecting the modules using photonic links, system gains valuable flexibility, allowing modules to be upgraded or swapped out without disrupting entire architecture.


[b]Dougal Main, Dept of Physics, University of Oxford said scalable architecture is based on modules, each contain only a small number of trapped-ion qubits (atomic-scale carriers of quantum information), are linked together using optical fibres & use light rather than electrical signals to transmit data between them. These photonic links enable qubits in separate modules to be entangled*, allowing quantum logic tobe performed across modules using quantum teleportation.** [/b]

Although quantum teleportation of states has been achieved previously, this study is first demonstration of quantum teleportation of logical gates (the minimum components of an algorithm) across a network link. According to the researchers, this could lay groundwork for a future 'quantum>>internet,' where distant processors could form an ultra-secure network for communication, computation and sensing.

(Study lead Dougal Main Dept of Physics said): ‘Previous demonstrations of quantum teleportation have focused on transferring quantum states between physically separated systems. In tour study, we use quantum teleportation to create interactions between these distant systems. By carefully tailoring these interactions, we can perform logical quantum gates - the fundamental operations of quantum computing - between qubits housed in separate quantum computers. This breakthrough enables us to effectively Clapping 'wire together' distinct quantum processors into a single, fully-connected quantum computer.’.. Thumbs_up

Grover’s research algorithm quantum method searches for a particular item in a large, unstructured dataset much faster than a regular computer can, using quantum phenomena of superposition and entanglement to explore many possibilities in parallel. Its successful demonstration underscores how a distributed approach can extend quantum capabilities beyond the limits of a single device, setting the stage for scalable, high-performance quantum computers powerful enough to run calculations in hours that today’s supercomputers would take many years to solve. Professor David Lucas, principal investigator of the research team lead scientist for the UK Quantum Computing and Simulation Hub, led from Dept of Physics, said: ‘Our experiment demonstrates network-distributed quantum information processing is feasible with current technology. Scaling up quantum computers remains a formidable technical challenge that will likely require new physics insights as well as intensive engineering effort over the coming years.’
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(24-07-2025, 02:42 PM)Tee tiong huat Wrote:  By interconnecting the modules using photonic links, system gains valuable flexibility, allowing modules to be upgraded or swapped out without disrupting entire architecture.

[b]Dougal Main, Dept of Physics, University of Oxford said scalable architecture is based on modules, each contain only a small number of trapped-ion qubits (atomic-scale carriers of quantum information), are linked together using optical fibres & use light rather than electrical signals to transmit data between them. These photonic links enable qubits in separate modules to be entangled*, allowing quantum logic tobe performed across modules using quantum teleportation.** [/b]

Although quantum teleportation of states has been achieved previously, this study is first demonstration of quantum teleportation of logical gates (the minimum components of an algorithm) across a network link. According to the researchers, this could lay groundwork for a future 'quantum>>internet,' where distant processors could form an ultra-secure network for communication, computation and sensing.

(Study lead Dougal Main Dept of Physics said): ‘Previous demonstrations of quantum teleportation have focused on transferring quantum states between physically separated systems. In tour study, we use quantum teleportation to create interactions between these distant systems. By carefully tailoring these interactions, we can perform logical quantum gates - fundamental operations of quantum computing - between qubits housed in separate quantum computers, his breakthrough enables us to effectively Clapping 'wire together' distinct quantum processors into a single, fully-connected quantum computer.’.. Thumbs_up Grover’s research algorithm quantum method searches for a particular item in a large, unstructured dataset much faster than a regular computer can, using quantum phenomena of superposition and entanglement to explore many possibilities in parallel. Its successful demonstration underscores how a distributed approach can extend quantum capabilities beyond the limits of a single device, setting the stage for scalable, high-performance quantum computers powerful enough to run calculations in hours that today’s supercomputers would take many years to solve. Professor David Lucas, principal investigator of the research team lead scientist for the UK Quantum Computing and Simulation Hub, led from Dept of Physics, said: ‘Our experiment demonstrates network-distributed quantum info processing is feasible with current technology. Scaling up quantum computers remains a formidable technical challenge that will likely require new physics insights as well as intensive engineering effort over the coming years.’

https://www.ox.ac.uk/news/2025-02-06-fir...ers-closer
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https://youtu.be/TIT07t1UE8A?si=H9J342bANFYJcaJ5
Einstein’s warp dream revived ― NASA now designing faster‑than‑light engine https://share.google/US71p30LRkrzCnEOb
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However, Dr. Harold “Sonny” White, a
NASA engineer & physicist, thinks there’s a possible workaround. By changing shape of the negative mass ring, he believes energy needed could drop to something more manageable — around 700 kilograms of mass.

White & his team at NASA are working on this through White-Juday Warp Field Interferometer. Their goal is to detect & create tiny warp bubbles. It is not something that will send us to distant galaxies like Andromeda anytime soon, but it is one step closer to turning the idea of a warp drive into something real. Nothing can go faster than photons.
However, here a big problem. According to Einstein, as something moves faster, its mass grows, making it harder to speed up. 

To reach light speed, you would need infinite energy, which is impossible with what we know today. Warp drive continues to spark the imagination of scientists and sci-fi fans. It is often called the holy grail of space travel — the dream of getting to distant stars in moments instead of years.
Einstein’s theory says nothing can go faster than light — it would take infinite energy to push anything to that speed. Light itself gets around this because photons, the particles that make it up, have no mass. That is why building a ship that can travel at the speed of light is not possible today.

The risks of traveling beyond the speed of light. The laws of physics even suggest catastrophic risks for travelers pushing those boundaries. If people were capable of traveling from point A to point B at the speed of light, when they come back to Earth, it is possible that the world they knew will not be there. 

For them, the travel had a couple of days or months, but for those on the planet, millions of years have passed.
Our coverage of events affecting companies is purely informative and descriptive. Under no circumstances does it seek to promote an opinion or create a trend, nor can it be taken as investment advice or a recommendation of any kind.
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Einstein’s warp dream revived ― NASA now designing faster‑than‑light engine https://share.google/3xmulOUKvjb12zvgK
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(25-07-2025, 09:18 AM)Tee tiong huat Wrote:  However, Dr. Harold “Sonny” White, a
NASA engineer & physicist, thinks there’s a possible workaround. By changing shape of the negative mass ring, he believes energy needed could drop to something more manageable — around 700 kilograms of mass.

White & his team at NASA are working on this through White-Juday Warp Field Interferometer. Their goal is to detect & create tiny warp bubbles. It is not something that will send us to distant galaxies like Andromeda anytime soon, but it is one step closer to turning the idea of a warp drive into something real. Nothing can go faster than photons.

However, here a big problem.
According to Einstein, as something moves faster, its mass grows, making it harder to speed up. 


To reach light speed, you would need infinite energy, which is impossible with what we know today. Warp drive continues to spark the imagination of scientists and sci-fi fans. It is often called the holy grail of space travel — the dream of getting to distant stars in moments instead of years.
Einstein’s theory says nothing can go faster than light — it would take infinite energy to push anything to that speed. Light itself gets around this because photons, the particles that make it up, have no mass, why building a ship that can travel at speed of light, it is not possible today.

Risks of traveling beyond speed of light. Laws of physics even suggest catastrophic risks for travelers pushing those boundaries. If people were capable of traveling from point A to point B at speed of light, when they come back to Earth is possible that world they knew will not be there. For them, travel had a couple of days or months, for those on the planet, millions of years have passedOur coverage of events affecting companies is purely informative and descriptive. Under no circumstances does it seek to promote an opinion or create a trend, nor can it be taken as investment advice or recommendation of any kind.

One of the most famous ideas about space travel is warp drive — a concept that suggests it might be possible to travel faster than light by bending space and time. Travel at light-speed has always been the dream for scientists. In order to search further in the cosmos, an engine capable of reaching the speed of light is the piece that can change the way researchers, astronomers, and scientists study other cosmic bodies. On the other hand, according to Albert Einstein, nothing can go faster than the speed of light because it requires infinite energy, something scientists are trying to crack
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(26-07-2025, 09:36 PM)Tee tiong huat Wrote:  One of the most famous ideas about space travel is warp drive — a concept that suggests it might be possible to travel faster than light by bending space and time. Travel at light-speed has always been the dream for scientists. In order to search further in the cosmos, an engine capable of reaching the speed of light is the piece that can change the way researchers, astronomers, and scientists study other cosmic bodies. On the other hand, according to Albert Einstein, nothing can go faster than the speed of light because it requires infinite energy, something scientists are trying to crack

Einstein’s warp dream revived ― NASA now designing faster‑than‑light engine
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NASA proves growing plants in space is key to healthy astronaut life on Mars missions and deep space travel. The ideal clos of growing plants in space is growing plants is closer to reality. 

Why growing plants is space is important?. Big Grin
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(21-06-2025, 10:25 PM)Tee tiong huat Wrote:  Here another detection or real problem or isit some problem on July 5, 2025.
https://m.economictimes.com/news/new-upd...877309.cms

https://youtube.com/shorts/A3Mt-xFJtOY?s...5ZxdlwurLi
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https://www.youtube.com/live/HbiYp_aR7Uw...HqPDLutVk7
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(20-07-2025, 10:50 PM)Tee tiong huat Wrote:  [Image: Screenshot-2025-01-22-10-24-10-86-f9ee05...ccb329.jpg]
LUVOIR is bigger then JWST. It is built is yet to be place in space above earth. Big Grin
[Image: Screenshot-2025-01-22-10-22-11-38-f9ee05...ccb329.jpg]
Snapshot of Zhúlóng galaxy. Zhúlóng’s starlight travelled roughly 12.5 billion years be4 reaching JWST, offering an unprecedented look at spiral structure. The image reveals a compact, reddish core wrapped by bluish arms where younger stars reside, a pattern typical of mature disks, unprecedented so soon after cosmic dawn. At redshift 5.2 the cosmic baryon density was sixty‑three times today’s average, according to Planck cosmological parameters.

The James Webb orbit Telescope was intended to be the most powerful telescope ever launched into orbit. However, the United States has inexplicably shut it down, just after it showed something shocking on Mercury's surface. In this video, we'll look at what the Webb Telescope revealed and how NASA tried to hide the truth. From odd buildings never seen before to energy signatures that contradict known science, something was discovered on Mercury that challenges all we thought we knew about our solar system.


Why would NASA and the US government seek to suppress these findings? Are we kept in the dark about ancient civilizations, alien technology, or something more scarier? We analyze smuggled photographs, expert testimony, and emerging theories about what's really going on on Mercury—and why the James Webb Telescope had to be shut down before more was revealed. If you're ready to challenge everything you've been taught about space, don't miss this stunning inquiry.
https://youtu.be/MPb3paQSc30?si=Sh46HjadGtg_x9qS
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(30-07-2025, 11:29 PM)Tee tiong huat Wrote:  The James Webb orbit Telescope was intended to be the most powerful telescope ever launched into orbit. However, the United States has inexplicably shut it down, just after it showed something shocking on Mercury's surface. In this video, we'll look at what the Webb Telescope revealed and how NASA tried to hide the truth. From odd buildings never seen before to energy signatures that contradict known science, something was discovered on Mercury that challenges all we thought we knew about our solar system.

Why would NASA and the US government seek to suppress these findings? Are we kept in the dark about ancient civilizations, alien technology, or something more scarier? We analyze smuggled photographs, expert testimony, and emerging theories about what's really going on on Mercury—and why the James Webb Telescope had to be shut down before more was revealed. If you're ready to challenge everything you've been taught about space, don't miss this stunning inquiry.
https://youtu.be/MPb3paQSc30?si=Sh46HjadGtg_x9qS

https://youtu.be/MPb3paQSc30?si=Fpwlc4VYXulyDBk6
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(30-07-2025, 06:19 PM)Tee tiong huat Wrote:  https://www.youtube.com/live/HbiYp_aR7Uw...HqPDLutVk7

 [Image: 1f30a.svg][Image: 1f1ef-1f1f5.svg][Image: 1f1f7-1f1fa.svg] [url=https://twitter.com/hashtag/BabaVanga?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1950451119995695509%7Ctwgr%5Ead59c20d8deca64342e0e70e585ee53eb6a5fc0c%7Ctwcon%5Es1_&ref_url=https%3A%2F%2Fwww.ndtv.com%2Ffeature%2Frussia-kamchatka-earthquake-japan-tsunami-not-the-exact-date-but-japanese-baba-vangas-july-2025-tsunami-prophecy-stirs-online-frenzy-8981413&src=hashtag_click][/url]

[Image: DJ3UzBl-oF53bRK8.jpg]

https://m.economictimes.com/news/new-upd...877309.cms
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The Kamchatka Peninsula earthquake may not have brought the same devastation as previous shocks, but a far more deadly seismic event is looming for the US West Coast. A major 600-mile-long fault line known as the Cascadia Subduction Zone runs from northern Vancouver Island in Canada to Cape Mendocino in northern California.

Scientists have predicted there is a 15 per cent chance of a major earthquake there in the next 50 years, which could bring a mega-tsunami hundreds of feet high to US coastlines.A study from Virginia Tech in April showed an earthquake of force eight or above could cause coastal land to sink 6.5 feet within minutes, devastating cities such as Seattle and Portland and flooding hundreds of miles of roadway, airports, schools, hospitals and power plants.

Researchers determined that the most severe effects would hit densely populated areas in northern California, southern Washington and northern Oregon. Like the Kamchatka quake, the Cascadia fault line lies in the “Pacific Ring of Fire” – a 25,000-mile horseshoe of 452 volcanoes which stretches from the southern tip of South America, along the coast of North America, across the Bering Strait, Japan and New Zealand.
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The ring produces around 90% of the world’s earthquakes.
[Image: Screenshot-2025-08-01-07-16-25-62-40deb4...480b12.jpg]
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(30-07-2025, 06:19 PM)Tee tiong huat Wrote:  https://www.youtube.com/live/HbiYp_aR7Uw...HqPDLutVk7


BREAKING: Russia's only nuclear submarine base in the Pacific—Vilyuchinsk—may have just been crippled by a magnitude 8.8 earthquake and tsunami waves over 4 meters/13 feet high. Base supports the Borei-class submarines armed w/Bulava nuclear missiles—one leg of Russia’s strategic nuclear triad done. No backup. If the infrastructure at Avacha Bay is damaged, Russia's Pacific deterrent is gone.

So why is the Kremlin silent?.
The last time Russia lost a submarine - Kursk in 2000 - Putin let 118 men die rather than admit failure. That was in peacetime. What happens now, in the middle of a war?

Is this a tectonic disaster—or a strategic collapse?.

This video investigates:
Port damage in the vicinity of Kamchatka. 
[Image: Screenshot-2025-08-01-11-09-41-68-40deb4...480b12.jpg]
Historical precedents: Kursk, Typhoon-class, and Soviet disasters. Why Russia cannot move these assets to Vladivostok. Whether weakens Russia’s 2nd-strike capability. How it reshapes U.S. & NATO threat planning. 

Note: Who is this Ryo Tatsuki AKA New Baba Vanga?. Ryo Tatsuki is a mysterious Japanese manga artist who claims she can see future through her dreams. In her book The Future I Saw, she drew, wrote about events later came true, like Japan's 2011 earthquake. B'cos some of her dream predictions have happened in real life, many folks are now paying close attention to what she says.

Read this on economictimes.indiatimes.com >
00:00 – Earthquake Strikes Kamchatka: Nuclear Sub Base in Danger.
02:12 – Why Vilichansk Matters: 
Russia’s Single Point of Failure. Evidence of Damage: What is Analyst saying and 
We are Seeing vs. Not Seeing those damage... Tongue

07:10 – History Repeats: The Putin Doctrine of Denial Strategic Fallout: Submarine Imprisonment & System Disruption. Stay tuned for detailed maps, military analyst said, look at Russia’s nuclear silence in the face of catastrophe. crying

👉 Updates by deep analysis on Russia’s hidden losses... Blush
Reply

(01-08-2025, 11:39 AM)Tee tiong huat Wrote:  BREAKING: Russia's only nuclear submarine base in the Pacific—Vilyuchinsk—may have just been crippled by a magnitude 8.8 earthquake and tsunami waves over 4 meters/13 feet high. Base supports the Borei-class submarines armed w/Bulava nuclear missiles—one leg of Russia’s strategic nuclear triad done. No backup. If the infrastructure at Avacha Bay is damaged, Russia's Pacific deterrent is gone.

So why is the Kremlin silent?.
The last time Russia lost a submarine - Kursk in 2000 - Putin let 118 men die rather than admit failure. That was in peacetime. What happens now, in the middle of a war?

Is this a tectonic disaster—or a strategic collapse?.

This video investigates:
Port damage in the vicinity of Kamchatka. 
[Image: Screenshot-2025-08-01-11-09-41-68-40deb4...480b12.jpg]
Historical precedents: Kursk, Typhoon-class, and Soviet disasters. Why Russia cannot move these assets to Vladivostok. Whether weakens Russia’s 2nd-strike capability. How it reshapes U.S. & NATO threat planning. 

Note: Who is this Ryo Tatsuki AKA New Baba Vanga?. Ryo Tatsuki is a mysterious Japanese manga artist who claims she can see future through her dreams. In her book The Future I Saw, she drew, wrote about events later came true, like Japan's 2011 earthquake. B'cos some of her dream predictions have happened in real life, many folks are now paying close attention to what she says.

Read this on economictimes.indiatimes.com >
00:00 – Earthquake Strikes Kamchatka: Nuclear Sub Base in Danger.
02:12 – Why Vilichansk Matters: 
Russia’s Single Point of Failure. Evidence of Damage: What is Analyst saying and 
We are Seeing vs. Not Seeing those damage... Tongue

07:10 – History Repeats: The Putin Doctrine of Denial Strategic Fallout: Submarine Imprisonment & System Disruption. Stay tuned for detailed maps, military analyst said, look at Russia’s nuclear silence in the face of catastrophe. crying

👉 Updates by deep analysis on Russia’s hidden losses... Blush

So why is the Kremlin silent?.
  1. Karma is playing ✓good & Cry bad? (karma)
Last time Russia lost a submarine  crying Kursk in 2000 - Putin let 118 men die. rather than admit failure. That was in peacetime. What happens now, in the middle of a war?. Sick
Reply

(01-08-2025, 07:20 AM)Tee tiong huat Wrote:  The ring produces around 90% of the world’s earthquakes.
[Image: Screenshot-2025-08-01-07-16-25-62-40deb4...480b12.jpg]

Disaster again and again. crying
Karma is playing ✓good & bad. Some bad to even worse situation?.

  1. (karma is be bad and also good) Note:  Last time Russia lost a submarine (nothing to cry for Kursk A Sub lost in 2000 - Putin let 118 men die is a one hundred meter deep sea near to russia water. Is this a karma re-play this time is recent day, refering far east Russia near to Japan during 8.7 earth quake happening  recently. Tongue
Reply

(24-05-2025, 10:46 AM)Tee tiong huat Wrote:  Researcher suggests that rate at which Earth is spinning – in other words, its day length – may have had an important effect on the pattern and timing of "Earth's oxygenation." There are two major components to this story that, at first glance, don't seem to have a lot to do with each other. 

The first is that Earth's spin is slowing downThe reason Earth's spin is slowing down is because the Moon exerts a gravitational pull on the planet, EARTH. which causes a rotational deceleration since the Moon is gradually pulling away.

Astronomers have confirmed existence of a rare, retrograde-orbiting planet in a tight binary star system. Most stars throughout Universe are part of binary or multiple star systems. In these systems, a nearby companion star can make it difficult for planets to form & remain in stable orbits around just one of the stars. A research team made up of international astrophysicists, led by Professor Man Hoi Lee from University of Hong Kong’s Dept of Earth Sciences & Department of Physics, along with MPhil student Ho Wan Cheng, has confirmed a highly unusual planetary discovery. They identified planet orbiting in opposite direction of its binary stars’ movement, known as a retrograde orbit, within the nu Octantis (nu Octantis) binary system. Their work also sheds light on how the evolution of binary stars may have influenced planet’s origin & results have been published in the journal Nature.

The nu Octantis system contains two closely bound stars. Primary star, nu Oct A, is a subgiant with approximately 1.6 times mass of the Sun & companion, nu Oct B, has roughly half the Sun’s mass. Together, two stars complete an orbit around each other every 1,050 days.
Evidence for a potential planet in this system first emerged in 2004, when Dr David Ramm—now a co-author of the recent study—was conducting his PhD research at University of Canterbury in New Zealand. He detected an unusual pattern in radial velocity data (tracks a star’s motion toward or away from Earth), suggesting presence of planet,
nu Octantis systey, artist’s impression of the nu Octantis system. Image generated by ChatGPT-4.0 & further modified by Trifon TRIFONOV using the GNU Image Manipulation Programme. Credit: The University of Hong Kong

Signal was consistent with presence of a Jovian planet of about twice the mass of Jupiter orbiting around the primary star, nu Oct A, with a period of about 400 days. However, the existence of this planet has been controversial because its orbit would be so wide that it could only remain stable if it were retrograde and moved in the opposite direction to orbit of the binary. No observational precedents for such a planet & strong theoretical grounds against the info.
Confirming a Planet Against Odds. To settle debate, research team obtained new high-precision radial velocity observations using European Southern Observatory (ESO)’s HARPS spectrograph, to confirmed existence of planet signal. “We performed analysis of new & archival radial velocity data spanning 18 years, found stable fits that require planetary orbit to be retrograde nearly in the same plane as binary orbit,” said Mr Ho Wan Cheng, the first author of the paper.

Another key focus of new study was the determination the nature of secondary star nu Oct B. Mass of nu Oct B suggests could be af low-mass main-sequence star or a white dwarf. All stars spend most of their lives on main sequence, generating energy through nuclear fusion of hydrogen to helium in their core. After star exhausted its nuclear fuel, core collapses into a stellar remnant, would be a white dwarf if star’s initial mass is less than several times that of Sun. A white dwarf has a mass comparable to that of the Sun packed in an Earth-sized volume.

To identify which type of star nu Oct B, research team used adaptive optics imaging instrument SPHERE at ESO’s Very Large Telescope to observe system. Fact that nu Oct B was not detected in these observations indicated that must be a very faint white dwarf suggests the binary system has evolved significantly since its formation, as nu Oct B has already ejected most of its mass entered final stage of stellar evolution. Tracing System’s History. Research team looked into possible primordial configurations of the binary — that is, initial masses of two stars & initial orbit of the binary. “We found system is about 2.9 bil years old & nu Oct B was initially about 2.4 times the mass of Sun & evolved to a white dwarf about 2 bil years ago,” said Cheng. “Our analysis showed planet could not have formed around nu Oct A at the same time as the stars.” Discovery of nu Oct B is a white dwarf opens new possibilities how the retrograde planet may have originated. “When nu Oct B evolved into a white dwarf about 2 bil years ago, the planet could have formed in a retrograde disc of material around nu Oct A, form
from the mass ejected by nu Oct B, or could be captured from a prograde orbit around binary into a retrograde orbit around nu Oct A,” explained Professor Man Hoi Lee. “We might be witnessing 1st compelling case of a 2nd-generation planet; either captured, or formed from material expelled by nu Oct B, which lost more than 75% of its primordial mass to become a white dwarf,” added Dr Trifon Trifonov of Zentrum für Astronomie der Universität Heidelberg in Germany, Sofia University St. Kliment Ohridski in Bulgaria & a co-author of the paper.

“Key to exciting discovery was use of several complementary methods to characterize system in its entirety,” said PD Dr Sabine Reffert of Zentrum für Astronomie der Universität Heidelberg, another co-author of the paper. As astronomers continue to search for planets in different environments, study highlights planets in tight binary system with evolved stellar components offer unique insights into formation and evolution of planets. Reference: “A retrograde planet in a tight binary star system with a white dwarf” by Ho Wan Cheng, Trifon Trifonov, Man Hoi Lee, Faustine Cantalloube, Sabine Reffert, David Ramm & Andreas Quirrenbach, 21 May 2025, Nature.DOI: 10.1038/s41586-025-09006-x. This research uses two facilities operated by European Southern Observatory (ESO), namely the High Accuracy Radial Velocity Planet Searcher (HARPS) spectrograph at the ESO La Silla 3.6-metre telescope & the Spectro-Polarimetric High-contrast Exoplanet Research (SPHERE) instrument at Very Large Telescope.
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(Yesterday, 10:25 PM)Tee tiong huat Wrote:  Astronomers have confirmed existence of a rare, retrograde-orbiting planet in a tight binary star system. Most stars throughout Universe are part of binary or multiple star systems. In these systems, a nearby companion star can make it difficult for planets to form & remain in stable orbits around just one of the stars. A research team made up of international astrophysicists, led by Professor Man Hoi Lee from University of Hong Kong’s Dept of Earth Sciences & Department of Physics, along with MPhil student Ho Wan Cheng, has confirmed a highly unusual planetary discovery. They identified planet orbiting in opposite direction of its binary stars’ movement, known as a retrograde orbit, within the nu Octantis (nu Octantis) binary system. Their work also sheds light on how the evolution of binary stars may have influenced planet’s origin & results have been published in the journal Nature.

The nu Octantis system contains two closely bound stars. Primary star, nu Oct A, is a subgiant with approximately 1.6 times mass of the Sun & companion, nu Oct B, has roughly half the Sun’s mass. Together, two stars complete an orbit around each other every 1,050 days.
Evidence for a potential planet in this system first emerged in 2004, when Dr David Ramm—now a co-author of the recent study—was conducting his PhD research at University of Canterbury in New Zealand. He detected an unusual pattern in radial velocity data (tracks a star’s motion toward or away from Earth), suggesting presence of planet,
nu Octantis systey, artist’s impression of the nu Octantis system. Image generated by ChatGPT-4.0 & further modified by Trifon TRIFONOV using the GNU Image Manipulation Programme. Credit: The University of Hong Kong

Signal was consistent with presence of a Jovian planet of about twice the mass of Jupiter orbiting around the primary star, nu Oct A, with a period of about 400 days. However, the existence of this planet has been controversial because its orbit would be so wide that it could only remain stable if it were retrograde and moved in the opposite direction to orbit of the binary. No observational precedents for such a planet & strong theoretical grounds against the info.
Confirming a Planet Against Odds. To settle debate, research team obtained new high-precision radial velocity observations using European Southern Observatory (ESO)’s HARPS spectrograph, to confirmed existence of planet signal. “We performed analysis of new & archival radial velocity data spanning 18 years, found stable fits that require planetary orbit to be retrograde nearly in the same plane as binary orbit,” said Mr Ho Wan Cheng, the first author of the paper.

Another key focus of new study was the determination the nature of secondary star nu Oct B. Mass of nu Oct B suggests could be af low-mass main-sequence star or a white dwarf. All stars spend most of their lives on main sequence, generating energy through nuclear fusion of hydrogen to helium in their core. After star exhausted its nuclear fuel, core collapses into a stellar remnant, would be a white dwarf if star’s initial mass is less than several times that of Sun. A white dwarf has a mass comparable to that of the Sun packed in an Earth-sized volume.

To identify which type of star nu Oct B, research team used adaptive optics imaging instrument SPHERE at ESO’s Very Large Telescope to observe system. Fact that nu Oct B was not detected in these observations indicated that must be a very faint white dwarf suggests the binary system has evolved significantly since its formation, as nu Oct B has already ejected most of its mass entered final stage of stellar evolution. Tracing System’s History. Research team looked into possible primordial configurations of the binary — that is, initial masses of two stars & initial orbit of the binary. “We found system is about 2.9 bil years old & nu Oct B was initially about 2.4 times the mass of Sun & evolved to a white dwarf about 2 bil years ago,” said Cheng. “Our analysis showed planet could not have formed around nu Oct A at the same time as the stars.” Discovery of nu Oct B is a white dwarf opens new possibilities how the retrograde planet may have originated. “When nu Oct B evolved into a white dwarf about 2 bil years ago, the planet could have formed in a retrograde disc of material around nu Oct A, form
from the mass ejected by nu Oct B, or could be captured from a prograde orbit around binary into a retrograde orbit around nu Oct A,” explained Professor Man Hoi Lee. “We might be witnessing 1st compelling case of a 2nd-generation planet; either captured, or formed from material expelled by nu Oct B, which lost more than 75% of its primordial mass to become a white dwarf,” added Dr Trifon Trifonov of Zentrum für Astronomie der Universität Heidelberg in Germany, Sofia University St. Kliment Ohridski in Bulgaria & a co-author of the paper.

“Key to exciting discovery was use of several complementary methods to characterize system in its entirety,” said PD Dr Sabine Reffert of Zentrum für Astronomie der Universität Heidelberg, another co-author of the paper. As astronomers continue to search for planets in different environments, study highlights planets in tight binary system with evolved stellar components offer unique insights into formation and evolution of planets. Reference: “A retrograde planet in a tight binary star system with a white dwarf” by Ho Wan Cheng, Trifon Trifonov, Man Hoi Lee, Faustine Cantalloube, Sabine Reffert, David Ramm & Andreas Quirrenbach, 21 May 2025, Nature.DOI: 10.1038/s41586-025-09006-x. This research uses two facilities operated by European Southern Observatory (ESO), namely the High Accuracy Radial Velocity Planet Searcher (HARPS) spectrograph at the ESO La Silla 3.6-metre telescope & the Spectro-Polarimetric High-contrast Exoplanet Research (SPHERE) instrument at Very Large Telescope.

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(Yesterday, 12:49 AM)Tee tiong huat Wrote:  Disaster again & again. crying
Karma is playing ✓good & bad. Some bad to even worse situation?.

  1. (karma is so bad and also good) Note:  Last time Russia lost a submarine (nothing to cry for Kursk A Sub lost in 2000 - Putin let 118 men die is a one hundred meter deep sea near to russia water. Is this a karma re-play this time is recent day, refering far east Russia near to Japan during 8.7 earth quake happening  recently. Tongue

Watch: Russian volcano erupts after more than 500 years. A volcano in far eastern Russia has erupted for the first time in more than 500 years, which experts say may be linked to last week's massive earthquake.

The Krasheninnikov Volcano in Kamchatka threw up an ash plume up to six kilometres (3.7 miles) high overnight.
The last recorded eruption of Krasheninnikov was in the 15th century, according to the head of the Kamchatka Volcanic Eruption Response Team.

The volcanic event may be connected to a massive 8.8 magnitude earthquake which hit a similar area last week, with Russian experts warning strong aftershocks would be possible for several weeks after.
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