Saudi Arabia has begun construction on The Mukaab, a 400-meter-tall cube-shaped building. If completed, it will be the world's largest structure.

The skyscraper, in Saudi's capital Riyadh with two million square meters of floor space, is said to be large enough to hold 20 Empire State Building (New York's skyscraper).&nbsp;

The Mukaab's total cost will be US $50 billion and is planned to be the centrepiece of a new district in Riyadh, New Murabba. The district will have more than 25 million square meters of floor area and will comprise 104,000 homes.&nbsp;

Also read |&nbsp;<a href="https://www.wionews.com/world/france-rape-case-avignon-rapist-wanted-to-offer-wife-to-truckers-770567">Avignon rapist husband wanted to offer wife to truckers, raped her in a motorway rest area</a>

The Mukaab will be available for retail, corporate, and cultural uses.&nbsp;

The building was designed as a “premium hospitality destination" with a central atrium space.

It is being constructed by Saudi's New Murabba Development Company (NMDC), as part of the country’s Public Investment Fund (PIF).&nbsp;

<h2>The ideator of rare buildings&nbsp;</h2>

Cube buildings are rare to see because of their inefficient land use, but Saudi is all about its rare infrastructure.&nbsp;

The desert country has been the ideator of various skyscraper projects before, such as the Jeddah Tower, which was designed to be the world’s tallest skyscraper. Although, the building remains half-built after construction halted for five years in 2018.

Also read |&nbsp;<a href="https://www.wionews.com/world/us-is-like-garbage-can-for-world-says-donald-trump-in-latest-attack-on-migrants-770549">'US is like garbage can for world', says Donald Trump in latest attack on migrants</a>

The Line, conceived as a mirrored city in Saudi in the desert 170 kilometres long. But the building has been reportedly slashed to a mere 2.4 kilometres long for now.&nbsp;

<h2>New Murabba</h2>

The district is aimed to "seamlessly blend technology, innovation, and sustainability."

The district's official website said it will be a "centre of progress, creativity, and entrepreneurship while harmonising with nature's beauty and authentic culture."

(With inputs from agencies)

Saudi Arabia has begun construction on The Mukaab, a 400-meter-tall cube-shaped building. If completed, it will be the world's largest structure. The skyscraper, in Saudi's capital Riyadh with two million square meters of floor space, is said to be large enough to hold 20 Empire State Building (New York's skyscraper).

Saudi Arabia has begun construction on The Mukaab, a 400-meter-tall cube-shaped building. If completed, it will be the world's largest structure. The skyscraper, in Saudi's capital Riyadh with two million square meters of floor space, is said to be large enough to hold 20 Empire State Building (New York's skyscraper). The Mukaab's total cost will be US $50 billion and is planned to be the centrepiece of a new district in Riyadh, New Murabba. The district will have more than 25 million square meters of floor area and will comprise 104,000 homes. Also read | Avignon rapist husband wanted to offer wife to truckers, raped her in a motorway rest area The Mukaab will be available for retail, corporate, and cultural uses. The building was designed as a “premium hospitality destination" with a central atrium space. It is being constructed by Saudi's New Murabba Development Company (NMDC), as part of the country’s Public Investment Fund (PIF). The ideator of rare buildings Cube buildings are rare to see because of their inefficient land use, but Saudi is all about its rare infrastructure. The desert country has been the ideator of various skyscraper projects before, such as the Jeddah Tower, which was designed to be the world’s tallest skyscraper. Although, the building remains half-built after construction halted for five years in 2018. Also read | 'US is like garbage can for world', says Donald Trump in latest attack on migrants The Line, conceived as a mirrored city in Saudi in the desert 170 kilometres long. But the building has been reportedly slashed to a mere 2.4 kilometres long for now. New Murabba The district is aimed to "seamlessly blend technology, innovation, and sustainability." The district's official website said it will be a "centre of progress, creativity, and entrepreneurship while harmonising with nature's beauty and authentic culture." (With inputs from agencies)

Saudi Arabia starts construction on 'world's largest building' worth $50 billion

In pictures: World’s largest plant Posidonia Australis

If you are a gem lover, it is alright to be envious as the world's largest blue diamond to come for auction has been sold. &nbsp;

What may also interest you is that the 15.10-carat diamond was bought for $57.5 million on Wednesday. &nbsp;

This one-of-a-kind diamond is also called "The De Beers Cullinan Blue". It was auctioned at Sotheby's in Hong Kong. It was expected to sell for about $48 million.&nbsp;&nbsp;

Also Read:&nbsp;<a href="https://www.wionews.com/world/150-skulls-found-in-mexican-cave-turn-out-to-be-remains-of-sacrificial-victims-from-ad-900-474700" hreflang="en">A crime scene? 150 skulls found in Mexican cave turn out to be remains of sacrificial victims from AD 900</a>

An anonymous buyer bought the gem via phone.&nbsp;Before it was sold, the auction also witnessed an eight-minute bidding war between four potential buyers. &nbsp;&nbsp;

The diamond has originated from Cullinan mine in South Africa and was obtained in 2021, the press release from Sotheby's said. &nbsp;&nbsp;

Watch:&nbsp;Japanese man who married a fictional character, now struggles to form a bond

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In a statement, Sotheby's said, "Blue diamonds of this importance are exceptionally rare, with only five examples over 10 carats ever having come to auction, none of which have exceeded 15 carats, making the appearance of this flawless gem a landmark event in itself." &nbsp;&nbsp;

"It is truly a once-in-a-generation stone, and quite simply the greatest blue diamond of its size I have ever seen," said Patti Wong, chairman, Sotheby's Asia. &nbsp;

WATCH WION LIVE HERE

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(With inputs from agencies)&nbsp;

If you are a gem lover, it is alright to be envious as the world's largest blue diamond to come for auction has been sold. What may also interest you is that the 15.

If you are a gem lover, it is alright to be envious as the world's largest blue diamond to come for auction has been sold. What may also interest you is that the 15.10-carat diamond was bought for $57.5 million on Wednesday. This one-of-a-kind diamond is also called "The De Beers Cullinan Blue". It was auctioned at Sotheby's in Hong Kong. It was expected to sell for about $48 million. Also Read: A crime scene? 150 skulls found in Mexican cave turn out to be remains of sacrificial victims from AD 900 An anonymous buyer bought the gem via phone. Before it was sold, the auction also witnessed an eight-minute bidding war between four potential buyers. The diamond has originated from Cullinan mine in South Africa and was obtained in 2021, the press release from Sotheby's said. Watch: Japanese man who married a fictional character, now struggles to form a bond × In a statement, Sotheby's said, "Blue diamonds of this importance are exceptionally rare, with only five examples over 10 carats ever having come to auction, none of which have exceeded 15 carats, making the appearance of this flawless gem a landmark event in itself." "It is truly a once-in-a-generation stone, and quite simply the greatest blue diamond of its size I have ever seen," said Patti Wong, chairman, Sotheby's Asia. WATCH WION LIVE HERE (With inputs from agencies)

'The De Beers Cullinan Blue': World's largest blue diamond goes under hammer, sells for $57.5 million

Amazing discoveries can be made anywhere around the world. Well, it's absolutely true. An icefish colony has been found in Antarctica. It seems to be the world's largest&nbsp;fish breeding ground. &nbsp;

This colony has around 60 million fish in ice-covered Weddell Sea in Antarctica. It is home to the rare icefish, Neopagetopsis ionah. What’s special about this fish is it has a see-through skull and transparent blood. The icefish does not have red blood cells. &nbsp;

Also Read:&nbsp;<a href="https://www.wionews.com/science/ship-traffic-threatening-antarcticas-pristine-marine-ecosystem-says-study-443949" hreflang="en">Ship traffic threatening Antarctica's pristine marine ecosystem, says study</a>

As it lives in low temperatures, its body has evolved and come up with an anti-freeze protein in blood, which ensures ice crystals do not grow.

This unique discovery shows a lot is still unknown about the various ecosystems&nbsp;at the ocean depths. &nbsp;

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One of our beautiful icefish! <a href="https://t.co/NKCOzRSpR5">pic.twitter.com/NKCOzRSpR5</a>
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The fascinating find was made by German polar research vessel, Polarstern, in February 2021. The ship was surveying the seabed about half a kilometer below the ship. &nbsp;&nbsp;

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This was done with the help of a car-sized camera system, which was attached to the stern of the ship. It transmitted pictures up to the deck as it was being towed. &nbsp;

Also Read:&nbsp;<a href="https://www.wionews.com/science/no-kidding-goldfish-actually-drove-a-vehicle-on-land-443297" hreflang="en">No kidding: Goldfish actually drove a vehicle on land</a>

Autun Purser, postdoctoral reseacher, Alfred Wegener Institute in Bremerhaven, Germany, said, "We just saw fish nest after fish nest for the whole four hours, and during that time, we covered maybe six kilometers (3.7 miles) of the sea floor." &nbsp;

Purser is the lead author of a study on the icefish colony, which has been published in the journal ‘Current Biology’ on Thursday. &nbsp;

(With inputs from agencies)&nbsp;

Amazing discoveries can be made anywhere around the world. Well, it's absolutely true. An icefish colony has been found in Antarctica. It seems to be the world's largest fish breeding ground.

Amazing discoveries can be made anywhere around the world. Well, it's absolutely true. An icefish colony has been found in Antarctica. It seems to be the world's largest fish breeding ground. This colony has around 60 million fish in ice-covered Weddell Sea in Antarctica. It is home to the rare icefish, Neopagetopsis ionah. What’s special about this fish is it has a see-through skull and transparent blood. The icefish does not have red blood cells. Also Read: Ship traffic threatening Antarctica's pristine marine ecosystem, says study As it lives in low temperatures, its body has evolved and come up with an anti-freeze protein in blood, which ensures ice crystals do not grow. This unique discovery shows a lot is still unknown about the various ecosystems at the ocean depths. One of our beautiful icefish! pic.twitter.com/NKCOzRSpR5 — Autun Purser (@seabedbiologist) January 13, 2022 × The fascinating find was made by German polar research vessel, Polarstern, in February 2021. The ship was surveying the seabed about half a kilometer below the ship. This was done with the help of a car-sized camera system, which was attached to the stern of the ship. It transmitted pictures up to the deck as it was being towed. Also Read: No kidding: Goldfish actually drove a vehicle on land Autun Purser, postdoctoral reseacher, Alfred Wegener Institute in Bremerhaven, Germany, said, "We just saw fish nest after fish nest for the whole four hours, and during that time, we covered maybe six kilometers (3.7 miles) of the sea floor." Purser is the lead author of a study on the icefish colony, which has been published in the journal ‘Current Biology’ on Thursday. (With inputs from agencies)

Believe it or not: Rare ‘see-through’ fish colony found in Antarctica

Though the number of subterranean species of fish known on Earth is about 250, they are usually minuscule - about a few inches long - and live in a world of permanent dark and scant food.&nbsp;

Breaking the norm is a cavefish from an underground chamber in northeastern India that is reported to be much bigger than its ichthyological kin. The Um Ladaw Cavefish grows to nearly half a metre in length and weighs about 10 times more than any known species. 
&nbsp; 
The discovery answers a few questions but raises more to replace them, especially ones pertaining to the size of the fish, their feeding habits, the way they adapted to live in these extremely extensive and deep caves - some of which have not yet been explored.

Though the creature is essentially blind and eyeless, it has an ability to sense light which is yet to be explained by science.

Vegetation washed underground by rain has been assumed by researchers as the primary food source of these creatures, though none were visible at the time of discovery according to Harries, a hobbyist cave explorer and marine biologist at Heriot-Watt University in Edinburgh, Scotland.

The winter dry season is the only time to visit the case as the whole area floods and becomes completely inaccessible during the monsoons. Despite such knowledgeable deductions about their size and diet, how they get so large and what they feed on remains a riddle.

The two longest known subterranean fish species before this discovery were the blind swamp eel native to Mexico’s Yucátan and the blind cave eel from western Australia. Both creatures are known for their both narrow and ribbon-like physique.

Scientists have reason to believe that that the cavefish may be different enough from surface-dwelling golden mahseer to qualify as a unique species, despite the fact that they look very alike in body shape and structure.

Though the number of subterranean species of fish known on Earth is about 250, they are usually minuscule - about a few inches long - and live in a world of permanent dark and scant food.

Though the number of subterranean species of fish known on Earth is about 250, they are usually minuscule - about a few inches long - and live in a world of permanent dark and scant food. Breaking the norm is a cavefish from an underground chamber in northeastern India that is reported to be much bigger than its ichthyological kin. The Um Ladaw Cavefish grows to nearly half a metre in length and weighs about 10 times more than any known species. The discovery answers a few questions but raises more to replace them, especially ones pertaining to the size of the fish, their feeding habits, the way they adapted to live in these extremely extensive and deep caves - some of which have not yet been explored. Though the creature is essentially blind and eyeless, it has an ability to sense light which is yet to be explained by science. Vegetation washed underground by rain has been assumed by researchers as the primary food source of these creatures, though none were visible at the time of discovery according to Harries, a hobbyist cave explorer and marine biologist at Heriot-Watt University in Edinburgh, Scotland. The winter dry season is the only time to visit the case as the whole area floods and becomes completely inaccessible during the monsoons. Despite such knowledgeable deductions about their size and diet, how they get so large and what they feed on remains a riddle. The two longest known subterranean fish species before this discovery were the blind swamp eel native to Mexico’s Yucátan and the blind cave eel from western Australia. Both creatures are known for their both narrow and ribbon-like physique. Scientists have reason to believe that that the cavefish may be different enough from surface-dwelling golden mahseer to qualify as a unique species, despite the fact that they look very alike in body shape and structure.

World's largest cave fish found in Northeast India

Facebook Inc said on Wednesday it would end its partnerships with several large data brokers who help advertisers target people on the social network, a step that follows a scandal over how Facebook handles personal information.

The world's largest social media company is under pressure to improve its handling of data after disclosing that information about 50 million Facebook users wrongly ended up in the hands of political consultancy Cambridge Analytica.

Facebook adjusted the privacy settings on its service on Wednesday, giving users control over their personal information in fewer taps.

Facebook has for years given advertisers the option of targeting their ads based on data collected by companies such as Acxiom Corp and Experian PLC.

The tool has been widely used among certain categories of advertisers - such as automakers, luxury goods producers and consumer packaged goods companies - who do not sell directly to consumers and have relatively little information about who their customers are, according to Facebook.

"While this is common industry practice, we believe this step, winding down over the next six months, will help improve people`s privacy on Facebook," Graham Mudd, a Facebook product marketing director, said in a statement.

Shares in Acxiom traded down more than 10 percent to $25 after Facebook`s announcement after the bell. Shares in other data brokers were largely unchanged. A representative for Acxiom could not immediately be reached for comment.

Facebook declined to comment on how the change could affect its ad revenue.

Advertisers would still be able to use third-party data services to measure how well their ads performed by examining purchasing data, Facebook said.

Facebook`s website lists nine third-party data providers that it has worked with, including Acxiom, Experian, Oracle Data Cloud , TransUnion and WPP PLC .

None of the companies could immediately be reached for comment.

Facebook on Wednesday also put all its privacy settings on one page and made it easier to stop third-party apps from using personal information. Privacy settings had previously been spread over at least 20 screens, Facebook said.

Facebook said in a blog post it had been working on the updates for some time but sped things up to appease users` anger over how the company uses data and as lawmakers around the globe call for regulation.

Facebook`s shares closed up 0.5 percent at $153.03 on Wednesday. They are still down more than 17 percent since March 16, when Facebook first acknowledged that user data had been improperly channelled in 2014 via a third-party app to Cambridge Analytica, which was later hired by Donald Trump`s 2016 presidential campaign.

The data leak has raised investor concerns that any failure by big tech companies to protect privacy could deter advertisers, who are Facebook`s lifeblood and lead to tougher regulation.

SCRUTINY FROM LAWMAKERS

Facebook Chief Executive Mark Zuckerberg has repeatedly apologised for the mistakes the company made and has promised to crack down on abuse of the Facebook platform and restrict developers` access to user information.

There is a new Facebook page - called Access Your Information - where users can see what they have shared and manage it.

"The biggest difference is ease of access in settings, which fulfils Mark Zuckerberg`s promise to make the privacy process and permissions more transparent to users," Wedbush analyst Michael Pachter said.

It was uncertain whether the changes will satisfy lawmakers.

They have announced ahead of a stringent European Union data law which comes into force in May. It requires companies to give people a "right to portability" - to take their data with them - and imposes fines of up to 4 percent of global revenue for companies breaking the law.

Lawmakers in the United States and Britain are still clamouring for Zuckerberg himself to explain how users` data ended up in the hands of Cambridge Analytica.

He plans to testify before Congress, a source briefed on the matter said on Tuesday. Facebook has said it has received invitations to testify and that it is talking to legislators.

Zuckerberg and the CEOs of Alphabet Inc and Twitter Inc have been invited to testify at an April 10 hearing on data privacy. The U.S. House Energy and Commerce Committee and U.S. Senate Commerce Committee have also asked Zuckerberg to appear at a hearing.

The U.S. Federal Trade Commission has opened an investigation into Facebook, and attorneys representing 37 states are also pressing Zuckerberg to explain what happened.

Facebook adjusted the privacy settings on its service on Wednesday, giving users control over their personal information in fewer taps.

Facebook Inc said on Wednesday it would end its partnerships with several large data brokers who help advertisers target people on the social network, a step that follows a scandal over how Facebook handles personal information. The world's largest social media company is under pressure to improve its handling of data after disclosing that information about 50 million Facebook users wrongly ended up in the hands of political consultancy Cambridge Analytica. Facebook adjusted the privacy settings on its service on Wednesday, giving users control over their personal information in fewer taps. Facebook has for years given advertisers the option of targeting their ads based on data collected by companies such as Acxiom Corp and Experian PLC. The tool has been widely used among certain categories of advertisers - such as automakers, luxury goods producers and consumer packaged goods companies - who do not sell directly to consumers and have relatively little information about who their customers are, according to Facebook. "While this is common industry practice, we believe this step, winding down over the next six months, will help improve people`s privacy on Facebook," Graham Mudd, a Facebook product marketing director, said in a statement. Shares in Acxiom traded down more than 10 percent to $25 after Facebook`s announcement after the bell. Shares in other data brokers were largely unchanged. A representative for Acxiom could not immediately be reached for comment. Facebook declined to comment on how the change could affect its ad revenue. Advertisers would still be able to use third-party data services to measure how well their ads performed by examining purchasing data, Facebook said. Facebook`s website lists nine third-party data providers that it has worked with, including Acxiom, Experian, Oracle Data Cloud , TransUnion and WPP PLC . None of the companies could immediately be reached for comment. Facebook on Wednesday also put all its privacy settings on one page and made it easier to stop third-party apps from using personal information. Privacy settings had previously been spread over at least 20 screens, Facebook said. Facebook said in a blog post it had been working on the updates for some time but sped things up to appease users` anger over how the company uses data and as lawmakers around the globe call for regulation. Facebook`s shares closed up 0.5 percent at $153.03 on Wednesday. They are still down more than 17 percent since March 16, when Facebook first acknowledged that user data had been improperly channelled in 2014 via a third-party app to Cambridge Analytica, which was later hired by Donald Trump`s 2016 presidential campaign. The data leak has raised investor concerns that any failure by big tech companies to protect privacy could deter advertisers, who are Facebook`s lifeblood and lead to tougher regulation. SCRUTINY FROM LAWMAKERS Facebook Chief Executive Mark Zuckerberg has repeatedly apologised for the mistakes the company made and has promised to crack down on abuse of the Facebook platform and restrict developers` access to user information. There is a new Facebook page - called Access Your Information - where users can see what they have shared and manage it. "The biggest difference is ease of access in settings, which fulfils Mark Zuckerberg`s promise to make the privacy process and permissions more transparent to users," Wedbush analyst Michael Pachter said. It was uncertain whether the changes will satisfy lawmakers. They have announced ahead of a stringent European Union data law which comes into force in May. It requires companies to give people a "right to portability" - to take their data with them - and imposes fines of up to 4 percent of global revenue for companies breaking the law. Lawmakers in the United States and Britain are still clamouring for Zuckerberg himself to explain how users` data ended up in the hands of Cambridge Analytica. He plans to testify before Congress, a source briefed on the matter said on Tuesday. Facebook has said it has received invitations to testify and that it is talking to legislators. Zuckerberg and the CEOs of Alphabet Inc and Twitter Inc have been invited to testify at an April 10 hearing on data privacy. The U.S. House Energy and Commerce Committee and U.S. Senate Commerce Committee have also asked Zuckerberg to appear at a hearing. The U.S. Federal Trade Commission has opened an investigation into Facebook, and attorneys representing 37 states are also pressing Zuckerberg to explain what happened.

Facebook cuts ties to data brokers in blow to targeted ads

Underwater archaeologists and divers have discovered a passage connecting two underwater caves in what is said to be the world&#39;s largest flooded cave in Mexico.&nbsp;

This discovery could open doors to lost secrets of the ancient Maya civilization.&nbsp;

The Gran Acuifero Maya (GAM) has informed that the cave stretches to about 347 kilometres and was discovered after months of exploring a maze of underwater channels.

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Gran Acuifero Maya (GAM) (Reuters)
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The region hosts a stunning 358 submerged cave systems, representing some 1,400 kilometres (870 miles) of flooded freshwater tunnels hidden under the surface.

Near the beach resort of Tulum, the group found that the cave system known as Sac Actun once measured at 263 km, communicated with the 83-km Dos Ojos system. For that reason, Sac Actun now absorbs Dos Ojos.

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Gran Acuifero Maya (GAM) (Reuters)
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&quot;This immense cave represents the most important submerged archaeological site in the world. It allows us to appreciate much more clearly how the rituals, the pilgrimage sites and ultimately the great pre-Hispanic settlements that we know emerged,&quot; says underwater archaeologist Guillermo de Anda from Mexico&#39;s National Institute of Anthropology and History.

&quot;It has more than a hundred archaeological contexts, among which are evidence of the first settlers of America, as well as extinct fauna and, of course, the Maya culture,&quot; he added.&nbsp;

The Yucatan Peninsula, where the cave is located, reportedly still holds treasures from the ancient Mayan community.

The Gran Acuifero Maya (GAM) has informed that the cave stretches to about 347 kilometres and discovered after months of exploring a maze of underwater channels

Underwater archaeologists and divers have discovered a passage connecting two underwater caves in what is said to be the world's largest flooded cave in Mexico. This discovery could open doors to lost secrets of the ancient Maya civilization. The Gran Acuifero Maya (GAM) has informed that the cave stretches to about 347 kilometres and was discovered after months of exploring a maze of underwater channels. Gran Acuifero Maya (GAM) (Reuters) × The region hosts a stunning 358 submerged cave systems, representing some 1,400 kilometres (870 miles) of flooded freshwater tunnels hidden under the surface. Near the beach resort of Tulum, the group found that the cave system known as Sac Actun once measured at 263 km, communicated with the 83-km Dos Ojos system. For that reason, Sac Actun now absorbs Dos Ojos. Gran Acuifero Maya (GAM) (Reuters) × "This immense cave represents the most important submerged archaeological site in the world. It allows us to appreciate much more clearly how the rituals, the pilgrimage sites and ultimately the great pre-Hispanic settlements that we know emerged," says underwater archaeologist Guillermo de Anda from Mexico's National Institute of Anthropology and History. "It has more than a hundred archaeological contexts, among which are evidence of the first settlers of America, as well as extinct fauna and, of course, the Maya culture," he added. The Yucatan Peninsula, where the cave is located, reportedly still holds treasures from the ancient Mayan community.

World's largest underwater cave discovered in Mexico

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