Keeping up with all the news in the world can be a difficult task for anyone. That's why we're here to help with a few weekly lists that look at some of the most notable recent events. Click here to learn more about the key stories that made the headlines, or read on to learn more about bizarre and unique stories.
This week we have some architectural stories about the world's largest 3-D printed bridge and an ancient stone circle that was not that old. Two secrets of World War II get answers, and we are exploring an emerging rivalry between Canada and Norway, where the largest moose is found. In the world of cosmology we have two new ideas to explore: one concerns an alternative to the elusive planet Nine and the other the emergence of black holes.
0 Enter the Moose Wars
A war brews between Canada and Norway, home to the world's highest moose statue.
The city of Moose Jaw in Saskatchewan is home to Mac the Moose, a 9.8 meter high sculpture that was the largest moose in India the world for over 30 years. He lost this title in 2015, when the Norwegians of Stor-Elvdal Storelgen ("The Big Elk") built – a shiny stainless steel bull, which was built 30 centimeters higher, to become expressly the new highest moose in the world.
It seems the Canadians have had enough. The two comedians Justin Reves and Greg Moore have asked the people in Moose Jaw to fight back and recover the record. They launched an online fundraiser, hoping to raise $ 50,000 to hire an engineer to grow the size of the Mac. They have the support of the city's mayor, Fraser Tolmie, who has revealed that the fight is personal for him as the moose was named after his wife's great-uncle. 
The Scandinavians say they have no chance of letting them go. Deputy Mayor of Stor-Elvdal, Linda Henriksen, said they would do anything to make sure that Storelgen retains the title. They are willing to double the size of their elk if necessary, but wait for the Canadians to act first.
9 The Not So Old Stone Circle
Scottish archaeologists were shocked to find out that an "old" stone circle they had studied had actually been built in the 1990s.
The "recumbent stone circle" in Leochel-Cushnie, Aberdeenshire, was celebrated as a unique landmark because it was smaller than other similar monuments. Archaeologists discovered it on a farm last year and initially believed that it was 3,500-4,500 years old, as most of the stone circles in northeast Scotland were built during this period.
Earlier this month, researchers from Historic Environment Scotland received a discouraging phone call from the former owner of the farm. He told them that the "ancient" monument was just a replica that he built in the mid-1990s.
Aberdeenshire, Council spokesman Neil Ackerman, described the revelation as "disappointing," but considered the county a great addition to the local landscape. The modern replica will be included in official records to prevent future misidentifications. 
8 The Shepherding Disk Hypothesis
A New Study Published in The Astronomical Journal proposes an alternative to the mysterious planet of Nine, which represents the would explain bizarre observations in the Kuiper Belt.
The idea of an undiscovered planet hiding somewhere in the outer solar system appeared when Caltech astronomers discovered icy bodies moving together in a donut shape as if gravitationally bound to a large object. Later, other researchers found more transneptunic objects (TNOs) with eccentric orbits that showed that their rotation was disturbed by something. Scientists speculated that Planet Nine was responsible.
A team from the University of Cambridge and the American University of Beirut said that the culprit was a massive ice disk instead of a giant object, which consisted of numerous small bodies area. They call this the "shepherd disc hypothesis," claiming that the collective attractions of all these objects would be enough to affect the orbits of other TNOs. 
This is more feasible than an In the case of an undiscovered planet, there is still no observational data supporting the claim.
7 Like a Prayer
Pope Francis has published an app that allows Catholics worldwide to collaborate with him in prayer.
The application is called "Click to Pray" and was launched before World Youth Day 2019. Currently it is available in six languages. With the app, users know exactly when the Pope prays and what he prays for. 
During a demo from a window on the upper floor of the Apostolic Palace, the Pope prayed for Colombia and the Mediterranean, referring to a car bomb that claimed the lives of 20 police cadets and shipwrecks Hundreds of migrants were killed in the Mediterranean.
Catholics can check the Pope's profile for "Click to Pray" to find out his intentions and even click on an icon to indicate that they have joined him in prayer.
6 Who was Spandau # 7?
A recent DNA study brought to bed an old World War II conspiracy theory claiming that inmate Spandau # 7 was not the real Rudolf Hess, but a doppelganger.
One of the leading members of the NSDAP, Rudolf Hess, traveled alone to Scotland in May 1941. He was arrested, put on trial and taken to Spandau Prison in 1947. The rest of his life he spent as an inmate Spandau. # 7 until he was hanged in his cell in 1987.
Some people believe that the prisoner was not the real Hess. They claimed that there were some physical inconsistencies, such as the absence of chest scars in line with his World War I injuries, or the absence of a gap in the front teeth. 
Spandau # 7 also declined to see relatives until 1969, and once claimed to have amnesia. There were prominent people who believed Hess had been replaced by a doppelganger, including his doctor in Spandau and US President Franklin Roosevelt.
This conspiracy seemed to remain a mystery. There was no physical evidence to analyze. Hess's body was cremated and his grave was destroyed when he became a pilgrimage for neo-Nazis.
However, scientists found a blood sample taken from the inmate in 1982. It had been placed on a microscope slide for decades and hermetically sealed. They visited a male relative of Hess and compared their DNA. There was a 99.99 percent chance that they were related. Spandau No. 7 was Rudolf Hess.
5 For whom the bell storms
From a solved thriller from the Second World War, we travel further into the 1st World War. Two historians believe they identified the Italian soldier who identified them bore the brunt of a mortar attack and inadvertently saved the life of a young Ernest Hemingway.
An 18-year-old Hemingway served as a Red Cross volunteer on the battlefield on the Piave River on the Austro-Italian front. He was hit by a mortar shell that severely wounded the young American. Nevertheless, he survived because an Italian soldier standing next to him had the most impact.
The American writer James McGrath Morris and the Italian historian Marino Perissinotto believe that they identified the infantryman with the exclusion. Eighteen Italian soldiers died that night. Fifteen of them were deployed in different parts of the front. Two of the remaining three were with the 152nd Regiment a few miles behind the front. This left only a 26-year-old private man from Montalcino called Fedele Temperini. 
As further evidence, the two researchers found a military report of an officer at a Red Cross station in the Republic of San Marino. He said Hemingway was being treated alongside an Italian soldier who succumbed to his wounds. The Italian was from the 69th Infantry Regiment, which was Temperini's unit. Historians are currently campaigning for Temperini's name to be recorded on a monument on the Piave River where Hemingway was injured.
4 Monty strikes again
The notorious Montague Street Bridge in Melbourne claimed its first victim of peace after 224 days.
The bridge, colorfully called "Monty", has a low headroom of only 3 meters. Since its establishment over 100 years ago, it is the curse of ignorant truck drivers who plow on it and leave their vehicles under the bridge.
It's hard to say how many collisions occurred. A website keeps track of how many days have passed since the last crash, but it only goes back to 2016. Nevertheless, she still has 20 entries. That does not count the last hit that took place this Tuesday. 
To end these collisions, the Victorian Department of Transportation installed VicRoad's height detection bridges at the main terminals of the bridge, with black and yellow paddles. If the top of the truck strikes the blades, it means that Monty is also hit.
A total of 26 different warning signs alert the driver to the low distance of the bridge. Nevertheless, 14 crashes have occurred since the portals were installed. However, a VicRoads spokesperson believes that "accidents" have been avoided.
Some accidents are more severe than others. Last month, a bus driver was sentenced to five years' imprisonment after plunging a bus onto the bridge and severely injuring six passengers.
3 Toilet Snake
Australia is currently experiencing hot weather and animals are taking refuge wherever they can. A snake slipped into the bathroom of a Brisbane house and then bit a woman as she sat on the toilet.
Helen Richards visited relatives. At night, she went into the bathroom without turning on the lights, and did not see the 1.5-meter-long carpet python in the toilet cool.
As soon as she sat down, Helen felt a "sharp knock". "And she jumped off her seat with her pants around her ankles. As she turned, she saw something that reminded of a" long-necked turtle "sitting in the bowl returned. [19459011
Fortunately, the snake was unfavorable to Helen and the bites were relatively harmless. She was fine after being treated with an antiseptic and the snake was removed by a reptile therapist.
2 Bridge over the Small Canal
The longest 3-D printed bridge in the world is now open to the people of Shanghai.
The concrete bridge is 26 meters long and was built by a team from Tsinghua University's School of Architecture in Beijing using 3-D printing technology. It is located in the Baoshan District of Shanghai, modeled after the ancient Zhaozhou (Anji) Bridge, the oldest standing bridge in China.
The intersection consists of 112 separate concrete units – 44 for the body and 68 for the two flowing sides. It also includes monitoring systems that track the internal load on the bridge in real time. According to designer Professor Xu Weiguo, they were all made in just 450 hours, costing only a third of what a normal bridge of a similar size would cost. 
1 Dark Matter Halos Create Black Holes
Faced with the fact that they are hard-to-grasp and mysterious black holes, scientists seem to come up with new things about these celestial objects every week discover. This recent discovery, however, has the potential to completely rewrite our understanding of the cosmic phenomenon, as it suggests that the first massive black holes in the primordial universe were created in halos of dark matter.
The study was published in . Nature supported by NASA, the EU and the National Science Foundation, is the result of international efforts by researchers from the US and Ireland. It turns out that when galaxies formed very fast and violent, they disrupted the normal formation of stars and triggered the formation of black holes.
This newly discovered mechanism, due to its rapid growth, would have been prevalent especially in halos of dark matter. According to one of the authors of the paper, the Georgia Tech astrophysics professor John Wise, the formation of massive black holes requires "being in a rare region with an intense approach of matter." 
If this new model is correct, then it shifts from the previously accepted belief that massive black holes could only occur when exposed to high levels of radiation that are strong enough, to prevent star formation. It also indicates that they are far more common than we previously thought.