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Q: Is it true that a black hole isn't a hole at all?

Watch a TV show on this fact.

11 weeks 6 days ago in  Teaching & Learning - Other cities

 
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Don't tell anybody ... butT ... I heard voices ... and signals ...

 

https://www.forbes.com/sites/jamiecartereurope/2020/06/03/four-mysteriou...

 

Four ‘Mysterious Signals From Outer Space’ Are Coming From Galaxies Like Ours, Say Scientists

 

Go outside on a hot day and feel the Sun on your skin. Now imagine how much energy our Sun emits in an entire human lifetime.

Compress all that energy into a single burst lasting a mere millisecond and you’ll understand why fast radio bursts (FRBs) are one of the hottest topics in astronomy.

First discovered in 2007 at Australia’s Parkes radio telescope, FRBs are very brief, very bright single radio pulses that can last for several milliseconds. It’s estimated that several thousand per day are occurring over the entire sky.

The most famous one is FRB 121102, unusual because it’s been detected a few hundred times since it first “burst” onto the scene in 2014. FRB 121102 is coming from a small dwarf galaxy about three billion light-years from Earth.

So what’s causing them? Colliding stars? Supermassive black holes? Radio broadcasts from a distant alien civilization?

Well, it’s not black holes, according to Dr. Shivani Bhandari, an astronomer with CSIRO, Australia’s national science agency, whose new research published this week in The Astrophysical Journal Letters reveals that four FRBs are coming not from the heart of galaxies, but from their edge.

 

“These precisely localised fast radio bursts came from the outskirts of their home galaxies, removing the possibility that they have anything to do with supermassive black holes,” said Dr. Bhandari. Her team found the exact location of four new fast radio bursts—FRB 180924, FRB 181112, FRB 190102 and FRB 190608—by zooming-in on the radio sky using a detector on the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope in outback Western Australia.

Follow-up observations were made using some of the world’s largest optical telescopes, including Gemini South, the Very Large Telescope, Magellan Baade, Keck and the LCOGT-1m.

Although all of the four FRBs are coming from three or four billion light-years away, all were discovered to be coming from massive galaxies that are forming new stars at a modest rate, much like our own Milky Way.

“Just like doing video calls with colleagues shows you their homes and gives you a bit of an insight into their lives, looking into the host galaxies of fast radio bursts gives us insights to their origins,” said Dr. Bhandari.

The findings brings astronomers a step closer to understanding the origins of these mysterious signals from outer space.

As well as not being from black holes, the FRBs could also not have come from very bright explosions of stars or from cosmic strings, say the researchers, but could be from mergers of white dwarf stars or neutron stars.

Wishing you clear skies and wide eyes.

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Why you asking people on here for? People on here can barely figure how to get a visa for china let alone how a black hole works.

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'Black hole' is a characteristical term used in English, earthy language. angel

 

It is resemblance of happening in the Universe ..., i.e. strong gravity that nothing can escape ...

 

'Black hole' in Universe and 'black hole' on golf course are two very different things ... 

 

I guess, TV is assembled in the framed hole ...

 

I prefer to watch washing machine's cycles over the TV ...

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https://science.howstuffworks.com/antarcticas-spooky-cosmic-rays-might-s...

 

Antarctica's Spooky Cosmic Rays Might Shatter Physics As We Know It

 

Something strange is happening above the frozen landscape of Antarctica.

When scientists launched a science balloon mission called the Antarctic Impulsive Transient Antenna (ANITA) over the continent in 2006, a cosmic ray pinged off one of its instruments. That isn't so strange. Cosmic rays fly from deep space all the time, and ANITA can detect them and measure their energies. But on this occasion, the cosmic ray didn't come from above, it came from below. This high-energy particle had emerged from the ice and traveled upward through the atmosphere. That's not something that cosmic rays are supposed to do.

During another ANITA flight in 2014, it happened again.

Cosmic rays come from some of the most energetic places in the universe — from supernovas to the swirling maws of black holes. To see a cosmic ray emerge from the earth suggests that this particle traveled from deep space and passed right through the planet before emerging on the other side. According to physics, however, this is impossible.

The thing with cosmic rays, which are high-energy protons and atomic nuclei, is that they have large cross-sections. In other words, they have no problem interacting with matter. Should a cosmic ray hit the Earth, it will be stopped in its tracks by the atmosphere, like a bullet hitting a cinderblock. Conversely, neutrinos have very small cross-sections, meaning these ghostly particles zip through matter as if it weren't even there. Neutrinos are so weakly interacting with matter that trillions of them pass through our bodies unimpeded every second. But the particles that ANITA detected were not neutrinos, they were (what appear to be) cosmic rays, and they passed straight through our planet as if it weren't even there. Frankly, these cosmic rays are not normal.

Now researchers have revisited these ANITA events in a study submitted in September 2018 and found three similar detections of upward-moving cosmic rays in another Antarctica experiment called IceCube, a particle detector that's buried in the ice. They've arrived at an astonishing conclusion: These aren't regular, Standard Model cosmic rays; they could be evidence of exotic physics.

Exotic physics refers to physics that we don't currently understand, and scientists refer to it as "physics beyond the Standard Model." The Standard Model is a recipe book of sorts that tells the universe how subatomic particles (from electrons to photons to quarks) should behave. When the Large Hadron Collider (LHC) discovered the Higgs boson in 2012 — the particle that endows matter with mass — the Standard Model was complete; the theoretical framework that describes all interactions down to subatomic scales had been wrapped up.

There was, however, a problem. In fact, there were several. The Standard Model does not explain what dark matter and dark energy are. It also cannot explain why the majority of the universe is made from matter rather than antimatter. There's also the question of neutrino mass — the Standard Model falls short there, too. There are many mysteries that cannot be explained by the Standard Model recipe book, so physicists are hard at work trying to find evidence for a recipe book that's governing the universe in the shadows.

Maddeningly, the most complex experiments on Earth have yet to find any conclusive evidence of this shadowy realm, though there are clues. And, according to the researchers investigating the ANITA and IceCube anomalies, these cosmic ray detections may have opened a window into physics beyond the Standard Model, providing evidence of particles that look like cosmic rays and yet don't behave like cosmic rays.

"[U]nder conservative extrapolations of the [standard model] interactions, there is no particle that can propagate through the Earth [...] at these energies and exit angles. We explore here whether "beyond the Standard Model" particles are required to explain the ANITA events, if correctly interpreted, and conclude that they are," the researchers write in their study.

"Supersymmetry" (or SUSY) is one hypothetical exotic physics recipe book that may help explain what's going on. This hypothesis suggests that all the particles we know and love have SUSY particles (aka "sparticles"). These sparticles would provide balance to the Standard Model and may explain some of the mysteries that are confounding physicists and cosmologists. Could these phantom cosmic rays actually be a whole different type of particle emerging from supersymmetry?

It's too early to tell, and more data is needed, but it's tantalizing to think that we may have accidentally glimpsed physics beyond the Standard Model at the most extreme location on Earth.

 

 

 

 

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Don't tell anybody ... butT ... I heard voices ... and signals ...

 

https://www.forbes.com/sites/jamiecartereurope/2020/06/03/four-mysteriou...

 

Four ‘Mysterious Signals From Outer Space’ Are Coming From Galaxies Like Ours, Say Scientists

 

Go outside on a hot day and feel the Sun on your skin. Now imagine how much energy our Sun emits in an entire human lifetime.

Compress all that energy into a single burst lasting a mere millisecond and you’ll understand why fast radio bursts (FRBs) are one of the hottest topics in astronomy.

First discovered in 2007 at Australia’s Parkes radio telescope, FRBs are very brief, very bright single radio pulses that can last for several milliseconds. It’s estimated that several thousand per day are occurring over the entire sky.

The most famous one is FRB 121102, unusual because it’s been detected a few hundred times since it first “burst” onto the scene in 2014. FRB 121102 is coming from a small dwarf galaxy about three billion light-years from Earth.

So what’s causing them? Colliding stars? Supermassive black holes? Radio broadcasts from a distant alien civilization?

Well, it’s not black holes, according to Dr. Shivani Bhandari, an astronomer with CSIRO, Australia’s national science agency, whose new research published this week in The Astrophysical Journal Letters reveals that four FRBs are coming not from the heart of galaxies, but from their edge.

 

“These precisely localised fast radio bursts came from the outskirts of their home galaxies, removing the possibility that they have anything to do with supermassive black holes,” said Dr. Bhandari. Her team found the exact location of four new fast radio bursts—FRB 180924, FRB 181112, FRB 190102 and FRB 190608—by zooming-in on the radio sky using a detector on the Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope in outback Western Australia.

Follow-up observations were made using some of the world’s largest optical telescopes, including Gemini South, the Very Large Telescope, Magellan Baade, Keck and the LCOGT-1m.

Although all of the four FRBs are coming from three or four billion light-years away, all were discovered to be coming from massive galaxies that are forming new stars at a modest rate, much like our own Milky Way.

“Just like doing video calls with colleagues shows you their homes and gives you a bit of an insight into their lives, looking into the host galaxies of fast radio bursts gives us insights to their origins,” said Dr. Bhandari.

The findings brings astronomers a step closer to understanding the origins of these mysterious signals from outer space.

As well as not being from black holes, the FRBs could also not have come from very bright explosions of stars or from cosmic strings, say the researchers, but could be from mergers of white dwarf stars or neutron stars.

Wishing you clear skies and wide eyes.

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Weblink reads 'free Ardern ...'

 

https://www.rt.com/newsline/491184-new-zealand-free-ardern/

 

PM Ardern ‘dances for joy’ although ‘job is not done’ as she declares New Zealand free of coronavirus

8 Jun, 2020 11:29 

 PM Ardern ‘dances for joy’ although ‘job is not done’ as she declares New Zealand free of coronavirusNew Zealand's PM Jacinda Ardern. © Reuters / Yiming Woo / File Photo

 

New Zealand lifted all social and economic restrictions except border controls after declaring it was free of the coronavirus. “While the job is not done, there is no denying this is a milestone,” Prime Minister Jacinda Ardern told reporters on Monday.

Public and private events, the retail and hospitality industries and all public transport were allowed to resume without the distancing rules still in place across much of the world.

Ardern said she had done a “little dance” when she was told there were no more active Covid-19 cases in New Zealand. “We are confident we have eliminated transmission of the virus in New Zealand for now, but elimination is not a point in time, it is a sustained effort,” the PM said.

The country has reported 1,154 infections and 22 deaths since the virus arrived in late February. “We will need to move cautiously here. No one wants to jeopardize the gains New Zealand has made,” Ardern said.

 

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9 weeks 8 hours ago
 
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Yes, black exist in the universe. And there were more than one black hole in the outer space of galaxy.

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This one went missing ... and I thought I didn't count it right ... Researchers detect pulsing rhythm from supermassive BLACK HOLE 600 million light years away

Heart of darkness: Researchers detect pulsing rhythm from supermassive BLACK HOLE 600 million light years away

Scientists have rediscovered the ‘heartbeat’ from a supermassive black hole 600 million light years away, after it went missing for several years.

Jun 10, 2020 11:24

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 Hoooo-rraaahhh ...  we ... did it ... 

 

https://www.rt.com/news/491516-iss-astronauts-create-fifth-state-of-matter/

 

Astronauts on board the International Space Station have created a rare state of matter in ways not possible here on Earth.

 

A new study published in the magazine Nature suggests that scientists have used a small facility called the Cold Atom Lab (CAL) to create rare Bose-Einstein condensates (BECs), also known as the fifth state of matter.

The CAL is capable of chilling atoms in a vacuum down to temperatures one 10-billionth of a degree above absolute zero – lower than in interstellar space. That’s why CAL – the size of a bedside table – has a reputation for being one of the coldest spots in the known universe.

 

BECs occur when the temperature of an ensemble of atoms almost reaches zero. These gaseous clouds of atoms then act collectively, rather than individually. First predicted by Albert Einstein and Indian mathematician and physicist Satyendra Nath Bose 95 years ago, they weren’t observed in a lab until 1995.

The reason why it was essential to make BECs in space is that, on Earth, gravity pulls them to the ground, making them disappear within fractions of a second. When created in the microgravity of space, however, BECs last longer – the atoms slow down and their wavelengths align, allowing us to study them for longer.

“It was recognized early on that microgravity would come in handy, and that going to space would give us a lot of advantages in terms of measurement time,” David Aveline, the lead author of the study and a scientist at NASA’s Jet Propulsion Lab, told Business Insider.

 

In the past, scientists have conducted some pretty rudimentary tests to achieve microgravity here on Earth – including using a specially constructed tower at the University of Bremen’s Center of Applied Space Technology and Microgravity, where researchers drop objects from tall heights to simulate the state.

With the CAL, BECs can be generated “amazingly quickly,” Maike Lachmann, who participated in the experiment, told German magazine Welt der Physik (World of Physics). This is because with the CAL, “you don’t have to cool large bodies, just a tiny atomic cloud,” meaning the entire process takes roughly two seconds.

 

The success of the CAL experiment could mark the first step in BECs becoming the basis of ultra-sensitive instruments that can detect the faintest signals from the most unknown aspects of our universe, such as gravitational waves and dark energy.

Aveline also told MIT that BECs have more practical applications, which “range from accelerometers and seismometers to gyroscopes.” 

Whatever the outcome of the study, the existence of CAL means that scientists can continue to get funky with how they experiment with atoms. Watch this space.

 

 

 

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OP never came back ..., but we are every day inching closer ...

 

There could be up to 6 billion Earth-like planets in the Milky Way according to explosive new research

There could be up to 6 billion Earth-like planets in the Milky Way according to explosive new research

Using a groundbreaking new model, scientists have calculated that there may be up to six billion Earth-like planets in the Milky Way galaxy, reviving hopes that colonization among the stars may still, one day, be viable.

Jun 17, 2020 12:28 

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Space-time ripples flip our understanding of black holes & neutron stars upside down

Space-time ripples flip our understanding of black holes & neutron stars upside down

The gravitational wave that washed over earth last year left scientists all the world over puzzled about its source. Now the mystery may have been solved, and any one of its potential implications is astonishing. Jun 23, 2020 20:14

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Black hole merger in deep space suggests universe’s darkest beings can create light

Black hole merger in deep space suggests universe’s darkest beings can create light

Jun 26, 2020 15:54

 

Analysis of a collision between two black holes in a distant region of space has revealed the existence of light, the first time such an association has been made with the phenomenon.

The merging of the two cosmic beasts was reported after a gravitational wave dubbed S190521g was detected in May 2019 by the twin Laser Interferometer Gravitational-wave Observatory (LIGO) facilities in the US and the Virgo observatory in Italy.

Gravitational waves are caused by objects moving at very high speeds, such as when two black holes orbit and then merge with one another. Significant gravitational waves signal a curvature in space-time.

Remarkably, the Zwicky Transient Facility (ZTF) at the Palomar Observatory in California, had its telescope focused on the same region of space at the same time – and detected an explosive flare in the vicinity.

The research, published in astrophysics journal Physical Review Letters on Thursday, is the first record of light being associated with the collision of black holes.

The revelation could help prove the existing theory that black hole mergers occur regularly in regions of material known as ‘accretion disks’ surrounding supermassive black holes. Prior to the discovery, black holes were thought to merge in stellar graveyards, where there is little gas or dust that can heat up and glow.

“The expectation has always been that there would be no electromagnetic counterpart” to the merger’s gravitational-wave signal, Matthew Graham, principal scientist at ZTF and first author on the study, explained to a CNET.

However, with the existence of a flare and therefore light – which is a form of electromagnetic radiation – it seems that this assumption is incorrect, and that black holes can and do exist in regions with matter that can be heated or lit up.

Accretion disks are intense environments filled with gas, dust, stars and black holes. The research team believed that it was in such a location that the pair of black holes merged, an act that disturbed the surrounding space dust and debris and caused the flare as a result.

"The new merged black hole gets this kick and there's material dragged along with that. [It] slams into this gaseous environment around it and you get a shock front – that's the initial cause of the flare," Graham told CNET.

The LIGO/Virgo collaboration is yet to confirm what type of colossal cosmic event occurred but that, if it was as the researchers suspect, the merged black hole’s mass would now sit at around 150 solar masses, which would be the largest ever recorded.

 

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Have you ever been to Guizhou? .. like me ...?

Here are some pics from the Five-hundred-metre Aperture Spherical Radio Telescope (FAST) in Guizhou ...

Jul 4, 2020 14:15  

 

 

In a development that could finally shed light on dark matter, an international team of scientists have detected neutral hydrogen atoms, from a galaxy other than our own, for the very first time.

The finding came thanks to the enormous Five-hundred-meter Aperture Spherical Radio Telescope (FAST), which sits in a hilly, green natural basin in southwest China’s Guizhou Province.

The researchers detected the hydrogen coming from three extragalactic galaxies with only five minutes of exposure, a feat that demonstrates the exceptional sensitivity of the telescope. It is the first time neutral hydrogen from outside the Milky Way has been detected.

“With measurements of neutral hydrogen and carbon monoxide, scientists can estimate the dynamical mass of galaxies at different radii, and they can further study the distributions of baryons [a type of subatomic particle] and dark matter,” explained Dr Cheng Cheng, first author of the research.

Dark matter is a form of matter that’s believed to account for 85 percent of the matter in the universe but it has yet to be detected directly, despite the best efforts of researchers. Finding it would finally solve one of science’s most head-scratching mysteries.

The breakthrough FAST observation indicates the contribution of dark matter and illustrates the potential to study the mysterious matter in galaxies through neutral hydrogen.

Detecting extragalactic neutral hydrogen is one of the enormous telescope’s chief goals and it’s made possible through the massive size of the single-dish. As well as being the world’s largest filled-aperture radio telescope, it is the second-largest single-dish telescope after Russia’s RATAN-600.

The 1.2-billion-yuan ($170 million) machine, nicknamed Tianyan (meaning ‘Eye of Heaven’), is made up of approximately 4,400 aluminium panels and has more than 2,000 winches which allow it to be pointed at different parts of the sky.

Dr Cheng said the team is applying for more FAST observation time to further study the neutral hydrogen properties.

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This question has become racist since it was asked. Since that time, everything has become racist though.

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https://www.rt.com/news/494372-planet-nine-primordial-black-hole/

 

Scientists at Harvard University have developed a new method to hunt down black holes beyond our galaxy which may finally figure out what is going on with the oft-theorized but never-witnessed ‘Planet Nine.’

 

The method will make use of the upcoming Legacy Survey of Space and Time (LSST) mission, which is expected to begin operations in mid-2022. Using a tennis-court-sized mirror and a 3,200-megapixel camera, the researchers will seek out accretion flares, which shoot out of disrupted comets as they are stretched apart by black holes.

 

 

RTArtist's impression of a black hole. © Public Domain

Space rocks pulled in by the incredible gravitational force of a black hole melt long before they reach the event horizon, owing to the heat emitted by background accretion – that is, the stretching out – of gas and other material on its doorstep. On melting, these small bodies, such as asteroids, comets and whatever other material was unfortunate to stray too close to the black hole, emit radiation bright enough to be visible against the absolute darkness – or so the boffins hope.

"Because black holes are intrinsically dark, the radiation that matter emits on its way to the mouth of the black hole is our only way to illuminate this dark environment," explained, one of the leading scientists, Dr Avi Loeb. 

Using this method, Loeb claims we can finally detect, or rule out, the planet-mass black holes on the edge of the Oort cloud, thus solving the long-standing mystery of the so-called ‘Planet Nine.’

Theories about Planet Nine range from it being an undetected or ‘missing’ planet, banished from our solar system, to it being a primordial black hole, formed soon after the Big Bang, creating disturbances on the edge of our galactic yard. 

“Planet Nine is a compelling explanation for the observed clustering of some objects beyond the orbit of Neptune. If the existence of Planet Nine is confirmed through a direct electromagnetic search, it will be the first detection of a new planet in the solar system in two centuries, not counting Pluto,” said Amir Siraj, a Harvard astrophysics undergrad involved in the latest research.

The LSST mission will have instruments that are expected to be sensitive enough to detect radiation from beyond the Oort cloud – roughly 100,000 times the distance between the Earth and the Sun. It will reportedly boast a field of view that covers the whole sky, collecting a whopping 10 terabytes of data per night, once fully operational.

One of the ideas put forth was the possibility that Planet Nine could be a grapefruit-sized black hole with a mass of five to 10 times that of the Earth. 

 

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Astronomers Discover Four Never-Before-Seen Circular Radio Objects In Deep Space

They have so far defied explanation or description...  

 

As much as astronomy has revealed to us about the universe, there is still much we don’t know and anomalous discoveries routinely remind scientists of this. The newest discovery could be a totally brand-new type of astronomical object that is fascinating and a bit spooky.

Astronomers have discovered four rings, called “odd radio circles,” or ORCs, that so far have defied explanation or description. We don’t know how big the objects are, how far away they are, or how they formed-all we know is that they are only visible at radio wavelengths, where they are very bright at the edges. The ORCs are totally invisible when viewed with the visible, infrared, and X-ray wavelengths of the electromagnetic spectrum.

The paper describing this phenomenon, which was submitted for publication to the journal Nature Astronomy, offers explanations for ORCs but also methodically rules them out. So far, supernovas, star-forming galaxies, planetary nebulas, and gravitational lensing have all been excluded as possible explanations.

Two of the ORCs appear to contain central galaxies that can be seen at visible wavelengths; scientists speculate those rings could be connected to some kind of local galactic phenomena. The other two ORCs share close physical proximity and so could be interconnected in some way.

Astronomer Kristine Spekkens at the Royal Military College of Canada and Queen’s University says,

“[The objects] may well point to a new phenomenon that we haven’t really probed yet. It may also be that these are an extension of a previously known class of objects that we haven’t been able to explore.”

Other astronomers have speculated the ring-shaped islands in deep space could be the result of shockwaves or radio galaxies.

Astronomers discovered the ORCs while working on another project, the Evolutionary Map of the Universe (EMU), which is a map of radio frequencies in space. The EMU pilot survey employs the Australian Square Kilometer Array Pathfinder, or ASKAP, a radio telescope network of 36 dish antennas which are collectively generating a wide-angle view of the night sky and which scientists expect will identify 70 million new radio objects.

“This is a really nice indication of the shape of things to come in radio astronomy in the next couple of years,” Spekkens added. “History shows us that when we open up a new [avenue of looking at] space to explore … we always find new and exciting things.”

The discovery comes right at a time when astronomers are still struggling to understand more about another space radio anomaly, the Fast Radio Bursts, or FRBs, that spew incomprehensible amounts of energy in concentrated beams across the universe. While there are many outlandish speculations–including often specious murmurs of advanced extraterrestrial life–anytime scientists discover something in space that defies explanation, we will have to wait substantially longer to learn what both ORCs and FRBs really are.

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Alien hunter claims UFO was captured on Google Maps hovering over New Zealand beach (POLL)

Alien hunter claims UFO was captured on Google Maps hovering over New Zealand beach (POLL)

UFO hunters believe they finally have proof that Earth has been visited by alien crafts after a peculiar pattern was spotted hovering over a beach in New Zealand on Google Maps’ street view.

Jul 18, 2020 16:18

 

UFO hunters believe they finally have proof that Earth has been visited by alien crafts after a peculiar pattern was spotted hovering over a beach in New Zealand on Google Maps’ street view.

The supposed unidentified flying object appears to be suspended in the air over St Kilda beach on New Zealand’s South Island in the Google 360-degree image. The photo was uploaded by a user named David Newstead all the way back in 2014, but it shot to prominence this week after self-proclaimed alien-hunting expert Scott Waring posted a video about it on Friday.

"The UFO looks like a fat disc, thicker in the upper and lower middle. The object is metallic in color and has no wings and nothing to indicate that it might be a balloon, drone, plane or anything,” Waring breathlessly claimed on his ET Data Base blog.

The ufologist added that the object was in “extraordinary focus” and appeared to be warping the air around it “as if its propulsion system is altering the air temperature or static.”

Remarkably, Waring’s ardent followers proposed even more outlandish explanations for the unusual occurrence. Not buying that it could have a straightforward explanation, such as being an unusual drone, a camera glitch or even mischief-making by the uploader, some of the commenters believed it was potentially proof that humanity is living in a simulation. surprise

Others speculated about how the UFO was powered and what was driving it, while one commenter hailed it as “phenomenal.” “I wonder how fast this thing was traveling – faster than the eye could catch or was it hovering and cloaked to the human eye? I just don’t know, but the mystery is exciting,” Waring added.

Waring has made a host of other “discoveries” in Google Maps and in a range of other sources, including NASA images. Despite his enthusiasm, experts say these UFO “sightings” can usually be explained by a trick of the mind known as pareidolia. This is the tendency for humans to see recognizable shapes or patterns where they do not exist.

5' video ...  

 

 

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Where's OP? We found the answer ...  to his Q ... 

 

I mean, you can quit watching the teli ...

 

11-billion-year hole in our understanding of the history of the universe now ‘filled’

11-billion-year hole in our understanding of the history of the universe now ‘filled’

The Sloan Digital Sky Survey (SDSS) has published a comprehensive 3D map of the universe, filling in many previous unknowns. It represents “some of the most substantial advances in cosmology in the last decade,” one expert says.

Jul 20, 2020 20:28

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Is this final proof, Creator also uses a switch ...?

 

Scientists Say A Supermassive Black Hole Glitched, Inexplicably Turning Off and On Again

The corona at the center of a black hole abruptly disappeared and then reformed, essentially turning the black hole off and then starting up again...

 

About 100 million light-years away, the super hot, ultrabright corona at the center of a supermassive black hole (1ES 1927+654) abruptly disappeared and then reformed, essentially turning the black hole off and then starting up again, as though it had glitched. It is the first time such a phenomenon has ever been documented.

Lead author of the study, Claudio Ricci, remarked,

“It was so strange that at first we thought maybe there was something wrong with the data. When we saw it was real, it was very exciting. But we also had no idea what we were dealing with; no one we talked to had seen anything like this.”

Ricci and the other MIT astronomers studying the event believe a rogue star may have caused a massive “tidal disruption,” that may have acted like “a pebble tossed into a gearbox,” which subsequently caused the entire corona of highly charged particles to come collapsing into the black hole.

As a result, the black hole’s brightness diminished precipitously, dimming by a factor of 10,000 in under a year.

“We expect that luminosity changes this big should vary on timescales of many thousands to millions of years,” Erin Kara, assistant professor of physics at MIT and co-lead on the study, explained.

“But in this object, we saw it change by 10,000 over a year, and it even changed by a factor of 100 in eight hours, which is just totally unheard of and really mind-boggling.”

So, from the point of view of scientists on Earth, the black hole seemed to just eat itself, close up shop, and disappear from radar, something corroborated by multiple telescopes and observed in X-ray, optical, and ultraviolet wave bands. But that wasn’t the end. Since the core singularity of the black hole still existed, it began to gobble up particles again and spin up a new accretion disk, re-generating its old luminosity in only months.

The MIT team first discovered the anomaly in March 2018, when they recorded an active galactic nucleus (AGN) using ASSASN, the All-Sky Automated Survey for Super-Novae. They also observed the black hole with NASA’s NICER, an X-ray telescope mounted to the International Space Station.

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