What is the largest object in the universe?

 If you mean singular objects instead of star clusters (galaxies) or galaxy clusters (superclusters), then I'll provide my list (that we know of so far):

Largest non-spherical solid object: Haumea - radius 620 km.

Largest moon: Ganymede - 2634 km radius.

The largest rocky planet: Kepler 10 c - 2.35 Earth radii (15,000 km).

The largest gas giant planet: HD 100546 b - 6 Jupiter radii (419,466 km).

Largest ring system: J 1407 b - radius 0.6 AU (90 million km).

Largest star: UY Scuti – 1708 Solar radii (1.19 billion km).

Largest black hole: radius TON 618 - 1300 AU (194.5 billion km).

Largest nebula (mostly intact): LAB-1 – 300,000 light-years across.

As mentioned above, as a bonus:

Largest galaxy: IC 1101 – 3.92 million light-years in diameter.

Largest structure: Hercules-Corona Borealis Great Wall - 10 billion light-years in diameter.

Stephenson 2-18 is now considered among the largest known stars, if not the largest, with a radius of 2,158 solar radii. UY Scuti, on the other hand, is about 1,700 times larger than the radius of the sun. It is also among the brightest cool supergiant stars, with a luminosity of 440,000 solar luminosities.

What is the largest mystery ever left behind by an unknown person?

 Some absolute legend drew a man in the Australian desert. He was 4.2 km tall. And to this day, no one knows who did it.

The desert drawing became known as Marree Man, named after the small town nearby.

The figure was first spotted in June 1998 by a pilot flying over the remote outback. Take a look at the image below and you can see him holding what looks like a hunting stick or boomerang.

So, who actually drew him? Again, no one knows. Nobody had reported seeing it being made. And whoever created it wasn’t particularly interested in taking credit.

However, anonymous messages began appearing in the media containing clues about its origins. Some used American terminology, leading to theories that an American might have been involved.

A year later, a fax message told authorities a plaque had been buried near the figure’s nose. It contained an American flag, Olympic rings, and a quote about indigenous hunters from Australian zoologist H. H. Finlayson’s 1946 book The Red Centre.

The sign maker who produced the plaque later said it had been ordered in April 1997, more than a year before Marree Man was discovered.

The figure eventually faded, but locals later restored it in 2016.

What is the largest plant on Earth?

 In the past, things like this were expressed in terms of individual size. For example, when I was a child, the blue whale was often said to be the largest creature in the world. However, nowadays, there are more and more cases where we recognize them as the same individual based on their DNA.

According to the Guinness Book of World Records I read a long time ago, this was the world's largest plant.

That's a redwood tree . You can see its size when you compare it to the woman. There are still theories that it is the world's largest plant. Well, I suppose that's one correct answer. However, from the perspective of DNA, as mentioned earlier, this is the correct answer.

This is a mushroom called Armillaria mellea . When DNA analysis was conducted on this mushroom in Oregon, USA, it was found that all the individuals growing in a cluster over an area of ​​just under 9 square kilometers were identical.

It might seem like a bit of a stretch, but some argue that this is the world's largest.

What was the largest amount of gold ever found in history?

Without a doubt, nothing represents wealth better than gold, especially when we're talking about a 27-kilogram nugget.

Kevin Hillier, a fellow from Australia, had a stroke of great luck. When he found a solid piece of pure gold weighing just over 27 kilograms, he did so using a rudimentary metal detector.

The piece was sold for close to one million dollars and is currently on display in Las Vegas, specifically at the Golden Nuggets casino.

It is estimated that its value has increased; they now estimate it to be worth around 40 million dollars.

What is the largest animal discovered most recently?

 Imagine you're aboard the Navy ship AFB-14 , sailing off the coast of Kaneohe, Hawaii. The date is November 15, 1976. The anchors are about to be pulled aboard when you see something caught in the middle of the bright orange, parachute-like device.

It's a shark, and a pretty big one at that.

Meet the greatmouth shark ( Megachasma pelagios ). These fish can grow very large—though not as impressively large as, say, a whale shark or a basking shark.

Greatmouths can reach nearly 20 feet (about 6 meters) in length.

It's impressive that these alien-looking sharks have managed to remain hidden for so long. Most of the enormous deep-sea creatures such as sperm whales, oarfish, giant and colossal squid, etc., have long been known to scientists, albeit not very well. Carcasses have washed ashore, specimens have been caught in nets, and, in the case of the sperm whale, we've hunted them for thousands of years.

It's not even that largemouths are super-smart and sneaky. They're relatively slow swimmers, even in deeper waters, and mostly just drift through the water column, sifting plankton from the sea into their cavernous jaws. Their bodies are flaccid and fragile, so much so that sperm whales bounce them around, at least in one case. Sperm whales are a bit of a jerk. You'd expect such a weak swimmer to be washed ashore all the time, but no. As of 2018, fewer than 99 largemouths have been recorded, most of which are carcasses that washed ashore or got caught in nets.

Largemouths have been mistaken for small whales on numerous occasions. Given the vastness of their habitat, one has to wonder if they were perhaps the basis behind the legend of the Ningen . The Ningen is a popular cryptid as old as the internet, described as a pale, humanoid creature that is absolutely enormous.

Hmmm...

Ningen or not, largemouths are very, very large and, relatively speaking, only recently discovered.

What is the largest known galaxy in the universe, and where is it located?

The name of the largest known galaxy is IC 1101 .

It has a radius of 1.9569 million light-years, which dwarfs the radius of our Milky Way galaxy, which is only 52,850 light-years. And it is approximately 12.31 billion years old.

This enormous elliptical galaxy is 320 megaparsecs (1.05 billion light-years) from Earth. It is also incredibly massive (no wonder), as it has a mass equivalent to about 100 trillion stars.

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What was the largest amount of gold ever found in history?

Without a doubt, nothing represents wealth better than gold, especially when we're talking about a 27-kilogram nugget.

Kevin Hillier, a fellow from Australia, had a stroke of great luck. When he found a solid piece of pure gold weighing just over 27 kilograms, he did so using a rudimentary metal detector.

The piece was sold for close to one million dollars and is currently on display in Las Vegas, specifically at the Golden Nuggets casino.

It is estimated that its value has increased; they now estimate it to be worth around 40 million dollars.

What is the largest animal that can exist?

 Science has so far determined that the blue whale has reached the highest life form possible on this planet. It's already a miracle that it exists at all.

Here are some curiosities about this animal:

They are the largest carnivores ever, forgotten even by T. rex. An adult blue whale can eat up to 40 million krill in a day. Whales always feed in areas with the highest concentrations of krill, sometimes eating up to 3,600 kilograms (7,900 lb) of krill in a single day.

Image: Watch the world's largest animal lunge for its dinner.

Not only the largest carnivore, it is also the largest living animal ever.

They can control their heartbeat like never before. Their heart rate is about 13 beats per minute. During a deep dive, they can reduce it to 4 to 8 beats per minute, and if necessary, even to 2 beats per minute. This allows them to perform better with lower oxygen consumption and cope with extreme pressure. When they surface, to replenish their energy, their heart can beat up to 37 beats per minute! A huge variation.

They likely reached the largest size possible for any living creature on Earth. Based on the above findings, scientists have performed calculations indicating that the blue whale is the most optimized form for a large animal. It is highly unlikely that there will ever be a larger animal on Earth, considering its heart is at the limit of what is needed to support a 200-ton animal.

What was the largest city in ancient times?

Cities originated as small villages along riverbanks, and with population growth and increased activity, they evolved into more complex cities. The earliest records of social organization were found along the valleys of the Tigris and Euphrates rivers in Mesopotamia; the Nile in Egypt; the Indus River in India; the Yangtze and Yellow Rivers in China; and the San Juan River in Mesoamerica.

Given the complexity of activities, it became necessary to create states for military defense and the construction of large-scale works (irrigation systems, temples, canals, etc.), in a process of civilization formation.

In Europe, the first prominent civilization was the Greek, whose records of city-states date back to the 8th to 6th centuries BC. The best-known Greek cities were Athens and Sparta, which for centuries dominated trade in the Aegean Sea and part of the Mediterranean, also leaving as an important legacy philosophical, political (democracy), legal, military, and artistic aspects that are still perceptible today. However, the most notable case of an ancient city is Rome.

from twin brothers nursed by a she-wolf, the greatest empire of the period was formed, with Rome as its capital. From the Republic onwards, the Romans expanded throughout Europe and much of Asia, dominating these regions economically, militarily, and culturally for centuries.

An archaeologist named Italo Gismondi spent over 35 years of his life building a scale model of ancient Rome, which gives us an idea of ​​the colossal size of this city. This incredible plaster model of Ancient Rome, known as Plastico di Roma Imperiale, was intricately designed by the archaeologist throughout his life to depict what the ancient city was like in the 4th century AD.

Gismondi worked on this model between 1935 and 1971.

Italo Gismondi: Mussolini commissioned the model that Gismondi continued making for most of his life.

The model is actually based on Rodolfo Lanciani's 1901 map, but was enlarged by Gismondi into this 1:250 scale model between the 1950s and 1970s. It is housed in the Museum of Roman Civilization and has even been used in films such as Gladiator. The entire model is approximately 16.5 m wide by 16.5 m long.

Gismondi's precision has earned this model a distinct reputation for being an important reference for monuments throughout Rome, such as the Colosseum and the Pantheon. The scale model was actually commissioned by Mussolini in 1933 and resides in a small neighborhood in Rome.

Some believe the model's purpose was for city planning and propaganda purposes by a fascist regime. It measures 55 feet wide and 55 feet long and now serves as an educational reference for students and tourists living and traveling throughout the old city.

The entire project consists of approximately one hundred and fifty window frames, mounted, in almost all cases, along the road axes.

Which is the largest specimen of squid and octopus? Which is the larger of the two?

 The largest squid, in terms of length, is the giant squid . These enormous cephalopods can measure over 13 meters long and weigh nearly 270 kg .

However, in terms of weight, the largest squid (and, incidentally, the largest invertebrate) is the colossal squid . Colossal squid are nowhere near as long as giant squid, rarely exceeding 9 meters in length, but they are much heavier – some females can weigh up to 500 kg !

The largest octopus is smaller than the largest squid, but it is still enormous. The giant Pacific octopus can measure (including its tentacles) nearly 6 meters long and weigh around 50 kg .

I'm aware that there are legends of giant squid exceeding 20 meters in length, but since these sightings aren't scientifically documented, I've ignored them. The internet is rife with misinformation, sometimes unintentional, often due to exaggeration.