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Saturday, 30 July 2016

10 EXPERIMENTS THAT SOLVED ARCHAEOLOGICAL MYSTERIES


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10 Experiments That Solved Archaeological Mysteries
By Ben Gazur,
Listverse, 29 July 2016.

Archaeology can be a frustrating pursuit. Getting objects out of the ground is only the first step. Understanding what they are, how they were made, and how they were used can be baffling. Sometimes, the only way to work things out is to try them for ourselves. This is called experimental archaeology, and here are 10 of the most amazing examples of it.

10. The Trireme Olympias


Ancient Greek triremes were the ultimate sea weapon of the Mediterranean. Fast and agile, they could travel long distances under sail or deploy oars and fight at close quarters. Images of the ships abound in carved reliefs and descriptions of naval battles. But there was long debate over exactly how the triremes’ most distinctive features, the three banks of oars for which it is named, were deployed. The conditions were definitely cramped for the rowers (Aristophanes the comic poet describes the scene of the rowers packed in - “Fart(ing) in the face of their rowing mate“), so just how did they work the oars together?

To settle the matter, experimental archaeologists built a full-size trireme. Crewed by enthusiasts. the ship was put through its paces over several years. Given just a small-time of training, they achieved speeds of 9 knots and rapid 180 degree turns. Given a properly trained crew, a fleet of such ships would have been truly formidable.

9. Guedelon Castle

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Photo credit: Asmoth/Wikimedia

How hard can building a castle be? Surely you just pile stones one on top of another until you have something sufficiently defendable. The number of skilled laborers required to build a castle, however, was staggering. Stone masons are just the most obvious. To understand fully how a castle could be constructed, a team of experimental archaeologists has set out to make one using only techniques available at the time.

Guedelon Castle is a faithful reconstruction of a castle started in 1998. The project has revealed much about castle building. The mortar used quickly makes the castle unsightly with stains, which would explain why castles used to be plastered and painted.

8. Moving Monoliths

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Photo credit: Stonehenge Guided Tours

How did ancient people move huge blocks of stone weighing many tons? They could not have loaded them onto wagons, as they lacked even the simple technology of wheels.

In 2010, a student noticed how closely in size certain carved balls found near sites of monoliths were and decided they must have been used together. By inserting replicas of the balls into wooden tracks, the transport of the stones became relatively simple.

However, that explanation wouldn’t work in the case of Stonehenge, one of the best-known ancient sites in the world. The stones used to create it were quarried 260 kilometers (160 mi) away. To transport them by rollers that distance would have been a monumental effort - greater, in fact, than building the monument itself.

In 2012, a simple method of loading the stones onto a replica of Bronze Age boat was demonstrated using just a few logs. Moving them by sea and river would have been relatively easy compared to hauling them over hills and through forests.

7. Building Pyramids

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Photo credit: WGBH

The Great Pyramid of Giza was the tallest man-made structure for 3,800 years. The amount of stone used to construct just that one pyramid is over 2.5 million cubic meters (91 million ft3). And there are more than 100 Egyptian pyramids in total. How were they built? It used to be thought that it was all a matter of many slaves making light work. Now, it is believed it was a workforce of free men. Still, the question remains as to how they did it.

A NOVA documentary showed how few men (1,200) it would take to quarry the necessary stone. Since most of the stone was sourced locally, no grand transport was needed. Their experiments allowed them to move a 1.5-ton stone with just 12 men. They estimate that just 5,000 men could build the Great Pyramid in 20–40 years.

6. Crossing The Alps

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Photo credit: John Hoyte

In 218 BC, Hannibal invaded Italy by crossing the Alps with 45,000 men and 37 war elephants. That much is known to history. The route used by the invader, however, is a matter of debate. In 1959, John Hoyte decided to try the crossing for himself. And he did not forget to pack an elephant.

Jumbo the elephant was lent to him by Turin zoo. The first route they tried proved impassable, and they were forced to take another possible route - the same followed by Napoleon when he crossed the Alps 2,000 years after Hannibal. In just 10 days, they reached Italy. Jumbo had lost a total of 250 kilograms (500 lb) but was otherwise in good shape.

In 1985, experimental archaeologist Marcus Junkelmann crossed the Alps in the other direction with a team dressed in authentic Roman army gear. They managed the march from Verona to Augsburg in a month.

5. Middelaldercentert

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Photo credit: Peter Vemming

The Middelaldercentert (“Medieval Center”) in Denmark is an entire site dedicated to experimental archaeology of the Middle Ages. They were the first group to reconstruct a trebuchet, a type of catapult, in modern times. It is capable of hurling heavy projectiles hundreds of feet. So far, it has fired 10,000 times without requiring major repairs.

Other reconstructions there include a medieval church and the oldest cast iron cannon, fired with gunpowder made from scratch. They also take inventions that were designed in the medieval period but never built. They have made a tank, car, and perpetual motion device from ancient texts. Shockingly, none of these reconstructions work yet.

4. Making Mummies

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Photo via strangehistory.net

Egyptian mummies were meant to propel the dead into immortality by preserving their mortal remains. In a sense, they worked, as mummies remain the most enduring image we have of the ancient Egyptians. The methods used by the embalmers were described in ancient texts. Not all the techniques were set down, and much is unknown. Much of what is known is not fully understood.

Bob Brier set out to create a modern mummy to elucidate the steps used in the ancient world. When a man died of a heart attack, he took the body and subjected it to the processes described by the ancients, using only tools and chemicals found in the ancient world. Years later, the body remains in the (slightly mangled though well-preserved) condition it achieved after mummification.

3. Kon-Tiki

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Photo credit: History.com

Thor Heyerdahl studied the people, flora, and fauna of the Polynesian islands. His research led him to question the prevailing theory of how people came to live there. While most thought people traveled out of the East, Heyerdahl believed they sailed from South America.

Going to South America, he traveled into the rain jungles and cut down Balsa trees, floating them down river to the sea. On the coast, he constructed a raft using only simple techniques. Then, with his crew, he set sail eastward. Though the parrot they took along perished, the humans survived the 101-day journey to Polynesia, well-fed on fish they caught along the way and crabs that infested the vessel. Heyerdahl proved the ancients could have made the voyage, though it still remains controversial as to whether they actually did.

2. Hokule’a

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Photo credit: Morris Publications

One problem with the Kon-Tiki was that it was practically impossible to steer. Heyerdahl saw no problem with this, as he saw the spread of humans across the Pacific as simply a matter of drifting on currents. Others disagreed.

The Hokule’a is a double-hulled canoe launched in 1976 to prove navigation was key to crossing between islands. The 4,000-kilometer (2,500 mi) journey from Hawaii to Tahiti in 1976 was a success, but it relied on using a navigator from Micronesia, as the skill required no longer existed in Polynesia. Able to navigate by the stars and read ocean swells he guided the ship safely between the islands. Once, he was able to tell the ship was off-course simply by the way the ship was riding swells.

1. Archimedes’s Weapons


According to some sources, Archimedes turned his great mind to creating terrible weapons when his home of Syracuse was besieged by the Romans. He is supposed to have created a claw capable of picking ships out of the water and sinking them. A series of mirrors is said to have focused the rays of the Sun on ships until they burst into flames.

The sources are sketchy on how exactly the devices used worked. Archimedes was a master of levers, pulleys, and buoyancy. If anyone could sink a ship with a claw, it would have been him. Any ship approaching the harbor walls could have been grasped and dragged over. A BBC documentary showed that such a mechanism was feasible (if difficult to use) by building one.

An MIT class used 127 1-square-foot mirrors to direct the Sun on a mock-up of a Roman ship. After 10 minutes, the wood of the ship caught fire. It must be noted that this was with brilliant sunlight, a stationary target, and no sea water to dampen things. Could Archimedes have made it work? More experiments seem to be needed.

Top image: Expedition Kon-Tiki 1947. Credit: Nasjonalbiblioteket/Flickr.

[Source: Listverse. Edited. Top image added.]

VIDEO: THE 10 WORST SUPERPOWERS TO HAVE IN REAL LIFE



The 10 Worst Superpowers to Have in Real Life
By Casey Chan,
Sploid, 28 July 2016.

What kind of human doesn’t want to have superpowers? I’d literally take any of them - flying, teleportation, invisibility, super strength - shoot, even a useless one like being able to eat anything would be so awesome to have. But there’s a dark side to having superpowers, and it’s mostly because we live in stupid ass real life.

ScreenRant lists their 10 worst superpowers to have in real life. Although some selections are being terribly nitpicky, the reasons they’d be awful to have are fair-ish, as they’re grounded in our reality. Like if you had Invisible Woman’s invisibility power, you’d be blind because you need to reflect light off the corneas of your eyes to see. Or if you had teleportation abilities, you’d have to be very careful where you teleport too lest something end up inside you when you pop up again. Even being able to change reality isn’t something anyone would want to have in real life because your subconscious could totally screw things up.

It’s all very sobering and I wish I could just be a kid and dream about superpowers without having to have things make total sense. Whatever. Flying would still be cool to have, right?


[Source: Sploid.]

Friday, 29 July 2016

NATIONAL GEOGRAPHIC'S BEST SPACE PICTURES THIS WEEK CXVIII


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Gaze at Supernova Remains and Saturn's Six-Sided Storm
By Michael Greshko,
National Geographic News, 29 July 2016.

This week, astronauts train on the ocean floor, red ribbons of gas reveal a long-ago supernova, and Saturn's rings star in an optical illusion.

1. Crimson Carnage

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The wisps of glowing gas that make up DEM L316A are the remnants of a supernova that rocked the Large Magellanic Cloud, one of the Milky Way's closest galactic neighbours, more than 160,000 years ago.

2. Age of Aquarius

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Six astronauts-in-training pose outside Aquarius, an undersea habitat and laboratory in the Florida Keys. The team will live and work more than 60 feet (19 meters) underwater for 16 days.

3. Strangely Six-Sided

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NASA's Cassini spacecraft spots the hexagonal jet stream that flows around Saturn's north pole. The pattern is about 20,000 miles (32,000 kilometres) across, with winds racing up to 200 miles (322 kilometres) an hour.

4. Bizarre Beacon

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Hubble gazes at the stars around AR Scorpii, a nearby double star system. Here, a rapidly spinning white dwarf periodically fires electron beams at its red dwarf partner, which we see as pulses of light every 1.97 minutes.

5. Winds of Change

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In this Cassini image, Saturn's A and F rings appear to bend near the planet's disk. As light reflects off the planet's rings, Saturn's upper atmosphere refracts it, making the rings look bent.

6. Viva Italia

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An astronaut aboard the International Space Station captured this photograph of Rome and the surrounding countryside. The glittering city's metropolitan area is home to 4.3 million people.

[Source: National Geographic News. Edited. Links added.]

INFOGRAPHIC: 15 JOBS THAT DIDN'T EXIST 30 YEARS AGO


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15 Jobs That Didn't Exist 30 Years Ago
By
Colonial Life, 27 July 2016.

Owing to the importance of factors such as social media and online marketing for businesses, whole job roles are constantly being created around these areas, as they become essential for the operations and success of a business.

Our latest infographic looks at a variety of jobs that didn’t exist thirty years ago, from Web Analysts to Social Media Managers. With many technology jobs being so specialized, the salary for some of these jobs can sometimes be very high, with a Drone Operator earning up to US$100,000 a year! However, these ‘new’ jobs aren’t just limited to technology, with many coming about as a result of changing attitudes and lifestyles, such as an increase in roles relating to fitness and nutrition.

Take a look at the infographic below to find out more about these modern jobs; how many have you heard of?

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[Post Source: Colonial Life.]

10 CONSPIRACY THEORIES THAT DIDN’T QUITE CATCH ON


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10 Conspiracy Theories That Didn’t Quite Catch On
By Mark Oliver,
Listverse, 29 July 2016.

In the Internet age, conspiracy theories are so widespread that when someone says the Moon landing was faked by lizard people who killed Princess Diana on September 11, we don’t even argue anymore. But there are some theories that never quite caught on. Hidden away on the Net are theories so crazy that they even made the lizard people-truthers a little skeptical.

10. Adam Sandler Can Predict The Future

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Photo credit: Gawker

Two years ago, The Onion’s site Clickhole posted an article called “5 Tragedies Weirdly Predicted By Adam Sandler.” It was a joke, of course, but some people took it seriously.

People went to Twitter and Facebook to gasp about the story, most of them strangely not even that surprised at a ‘90s comedian’s mystical clairvoyance. One particularly blase reader tweeted, “Adam Sandler Is An Oracle Of Sorts Who Can Predict The Future,” before letting out a confident, “I Always Knew This Sumhow.”

White supremacists really took it to heart. On their forums, they chalked this up as another nail in the coffin of the great Jewish conspiracy. “All the Jews know what the schedule is,” they wrote, taking a smug sense of self-confidence in an ideology backed by The Onion’s articles.

9. The Moon Is Not Real

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A lot of people have suggested the Moon landing was faked, but David Icke takes it one step further. He doesn’t think the Moon was ever really there in the first place.

Icke’s theory mostly comes from a quote from Irwin Shapiro, who jokingly said about the Moon’s strange size: “The best explanation for the Moon is observational error - the Moon doesn’t exist.”

In a slightly rambling post, Icke used that comment to argue that the Moon is a “control system that is manipulating our sense of reality to make us the slave race of those who are doing it.” It’s sort of like a conspiracy theory version of the allegory of the cave. He believes that all our perception is a man-made hologram to keep us from knowing the truth.

8. Obama Can Control The Weather

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There’s not a lot you can’t blame on Obama if you try hard enough. Case in point, when Oklahoma was hit by a tornado in 2013, radio host Alex Jones told his listeners that this storm was likely caused by a “weather weapon” sent off by the president. This quickly spread throughout conspiracy theorist websites, who built it up as an evil Democratic plot to distract attention from Benghazi.

Some people even declared that there had been no storm at all. According to one theorist, every dead body was planted there to make the conspiracy theorists look stupid.

So if you ever meet somebody who claims they lost a loved one to a natural disaster, just give them a hard stare and say, “You can’t fool me, Obama.” Otherwise, you just risk looking stupid.

7. Germany Is A Corporation

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Photo credit: German GmbH

Germany has a reputation as an “efficient” country, but this one takes it a bit far. According to a German conspiracy theory website, the nation was reunited not as a country but as a registered limited liability corporation.

Supposedly, the Federal Republic of Germany was registered as a corporation in the courts of Frankfurt in 1990. The website claims that German identity cards are actually employee ID numbers - which they support by pointing out how they’re called “identity cards” and that’s kind of a weird name.

It’s not entirely clear what the implications of Germany being a corporation would be, but the website does say that all German laws are really just a “terms and conditions” agreement. So maybe Germans who don’t check the box can do whatever they want?

6. Saddam Hussein Had A Stargate

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There are a lot of different theories about the Iraq War. Some people think it was a war for oil; others say 9/11 was faked to justify it. Dr. Michael Salla, though, thinks America wanted something else: Iraq’s stargate.

Stargates, of course, are highly sophisticated pieces of technology that were made up for a Kurt Russell movie. According to Salla, not only was the movie real, but Iraq had a stargate in their possession. Salla believes that Hussein was the reincarnation of Nebuchadnezzar and that when Nibiru was closest to the Earth, the Anunnaki set up encampment in Iraq. Yeah, we don’t know what any of that means, either.

The part that we do understand is that, according to Salla, US soldiers invaded Iraq and shut down the stargate to keep Sumerian gods from invading the Earth. The Iraq War was never about oil.

5. Snow In Georgia Is Poisonous


People in Georgia don’t get a lot of snow. When they do, they don’t quite know how to deal with it. Sometimes, they don’t quite understand what it is. For example, there was the time they decided it was a poisonous chemical dropped on them by the government.

Residents of Georgia overcome by the slight patter of snow took to YouTube with videos of them trying to set it on fire and being disappointed with the results. They took lighters to the snow and showed how black ash was left on it, as though this was conclusive evidence that this strange white substance from the sky was anything but natural.

However, other people managed to prove that the black spots were just the result of having the lighter too close, and hysteria died down as the snow melted.

4. Siri Opened The Gates Of Hades

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Photo credit: Revelation Now

Apple’s Siri program can give some weird responses, but none provoked quite the reaction that this one did. One user asked his iPhone what would happen on July 27, 2014. It would be a Sunday, Siri informed him, and they would be opening the gates of Hades.

Rather than a built-in joke, this was apparently a technical glitch caused by Siri misreading a Chinese holiday. Some people took it seriously, though. Infowars announced that this was the fulfillment of a biblical prophecy and that Apple somehow knew when the apocalypse was going to come.

July 27, 2014, has come and gone, and the gates of Hades don’t appear to have opened. But we shouldn’t be too quick to discredit Siri’s prophetic abilities. After all, July 27 was a Sunday.

3. The Large Hadron Collider Is Meant To Summon Osiris

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Photo credit: Mission Galactic Freedom

The Large Hadron Collider (LHC) is a major scientific breakthrough but a very complicated one. It can be hard for a layman to understand exactly what the scientists are trying to accomplish. Fortunately, one person on the Internet has explained it in simple English: They’re trying to summon the Egyptian god Osiris.

The theory starts by showing an ancient Egyptian picture of a boat and saying that it’s “common sense” that the boat is really an interdimensional portal to the land of the dead. It points out that wormholes sort of look like boats and that when you squint your eyes really tightly, the LHC kind of looks like Shiva.

Most of this theory’s support relies on squinting really hard and accepting that some things kind of look like other things. Then again, the science behind the LHC is pretty complicated, so accepting that it’s a portal to the netherworld does seem a lot easier than trying to understand what it’s really used for.

2. The Ice Bucket Challenge Is An Antichrist Plot

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Photo credit: eonline.com

The Ice Bucket Challenge was one of the most successful viral campaigns in history. By getting people to pour water on their heads, this challenge raised US$115 million to support families affected by amyotrophic lateral sclerosis (ALS). Or, if the Internet is to believed, “Antichrist Lucifer Satan.”

According to some people on YouTube, the disease is all a front so that celebrities who run the Illuminati can finally openly go on TV to do something in the name of “ALS.” According to this theory, every time a celebrity says they support “ALS,” they’re basically saying, “Hail Satan.”

1. Saved By The Bell Was Created By The Illuminati

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Photo credit: Illuminati Watcher

Saved by the Bell seemed like an innocuous show about good-looking teens who learn about love and friendship at their local high school. But according to one theory, it’s all an elaborate Illuminati brainwashing tool to introduce children to satanic ceremonies.

The argument starts by asking you to accept that the actor who played “Zack” was secretly Paul Walker. From there, it’s a simple matter of accepting that the theme song is filled with subliminal messages that teach children how to make satanic sacrifices. Paul Walker, of course, was secretly murdered in a faked car accident to keep him from revealing the truth about Saved by the Bell.

It might all sound far-fetched, but as the website points out, there was a triangle in the background of one scene. And, after all, why would a show briefly feature a triangle at one point in its four-year run if not to convert our children to satanism?

Top image credit: B Rosen/Flickr.

[Source: Listverse. Edited.]

Thursday, 28 July 2016

INFOGRAPHIC: PARENTING IN THE DIGITAL AGE


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Infographic: Parenting in the Digital Age
By Aliya Beck,
Family Orbit, 16 July 2016.

There’s no denying that being a parent has changed a lot in the past 20-30 years. Since most teens tend to stay in front of a gadget instead of going outside and play, it can be very hard for a parent to use the same approach as a few decades ago.

Being a parent nowadays can be overwhelming especially since it can be very hard to limit our kids when it comes to smartphone usage. Such devices have become a necessity and while they do a lot of good, they can also harm kids as well.

It can be hard to find the perfect balance between being a great parent all while offering your child the freedom he wants. And with the digital addiction being one of the major issues that teenagers have to face nowadays, it can be very challenging for a parent to find the right approach in this digital age.

We thought long and hard about parenting in the digital age here at Family Orbit and with that in mind we created our latest infographic. Here you can find out more about teens and smartphones, what digital addiction means for kids, what sexting does to them and how online predators can affect their lives! At the end of the infographic you can also find some of the best digital parenting techniques that will help you keep your child safe, techniques that will help you obtain incredible results in a short amount of time.

http://blog.familyorbit.com/infographic/Parenting-in-the-Digital-Age.jpg


[Post Source: Family Orbit.]

10 AMAZING WAYS PLUTO IS ALIVE


https://www.nasa.gov/sites/default/files/styles/full_width_feature/public/thumbnails/image/pluto-observations-through-the-years.gif?itok=A_WsMQ7f
10 Amazing Ways Pluto Is Alive
By Ivan Farkas,
Listverse, 28 July 2016.

New Horizons left Earth on January 19, 2006, at a ridiculous solar escape velocity of over 58,000 kilometers per hour (36,000 mph). In February 2007, New Horizons stole a bit of Jupiter’s orbital energy, boosting itself to 84,000 kilometers per hour (52,000 mph). After nearly 5 billion kilometers (3 billion mi) and 9.5 years, it met Pluto on July 14, 2015. It’s now more than 35 AU (astronomical units) from Earth on its way to the Kuiper Belt.

10. Pluto’s Tail

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Photo credit: NASA/APL/SwRI

The piano-sized New Horizons probe carries seven instruments, including one to see Pluto’s interaction with the 1.6-million-kilometer-per-hour (1 million mph) solar wind.

The SWAP (Solar Wind Around Pluto) instrument found that, like everything else about Pluto, its solar influence is unique in the solar system. Smaller comet-like bodies gently perturb the wind while larger planets slam into it like a wrecking ball. Pluto does both, acting like some wacky hybrid between planet and comet. Pluto creates a neat little bow shock but also an abrupt displacement of solar wind, the Plutopause.

SWAP also revealed that the dwarf planet sports an ionic tail that begins between 77,000–110,000 kilometers (48,000–68,000 mi) behind Pluto. This thick region of cold gas is Pluto’s methane- and nitrogen-rich atmosphere fleeing its host’s weak gravity for a cosmic road trip. The escaping particles get all kinds of ionized upon contacting ultraviolet radiation from the Sun and are carried “downstream” by the solar wind.

9. Unexpected Smoothness

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Photo credit: NASA/JHUAPL/SwRI via New Scientist

As New Horizons zoomed past Pluto, the images sent back displayed expected damage, including craters from past impacts. But the probe also sent back a surprise - smoothness.

Hanging out 6 billion kilometers (4 billion mi) from the Sun, Pluto should look dead, like Mercury or the Moon. Its entire surface should be marked with craters. Instead, its frosty heart, Sputnik Planum, appears polished and astronomers believe it’s under constant remodeling, with a replenishing surface that smooths over imperfections.

It’s unclear where Pluto’s energy is coming from. But it may be that the ancient collision that led to its birth occurred more recently than believed and chemical-laden ices are melted by residual inner heat. Or maybe Pluto’s small radioactive stockpile supplies the energy as it decays.

8. Pluto’s Spider

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Photo credit: NASA/JHUAPL/SwRI

Part of the dwarf planet is covered by what looks like a spider, extending six giant legs across the surface in a network of cracks unlike anything in the outer solar system.

The smaller cracks are an impressive 100 kilometers (60 mi) long, but the largest, Sleipnir Fossa (named after the eight-legged horse of Norse lore), goes on for over 580 kilometers (360 mi).

They’re unlike other cracks on Pluto, which run in parallel lines and are probably outlines of Pluto’s creaking crust. But the spider is different. Its cracks intersect at a central point, suggesting that a localized subterranean stress is cracking Pluto like a walnut. Odder yet, the cracks reveal a reddish subsurface.

Astronomers see similarly chapped terrains on Mercury and Venus and believe those cracks result from subsurface materials wriggling to the surface.

7. Some Of Pluto’s Atmosphere Is Migrating To Charon

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Photo credit: Tech Insider

The Pluto-Charon relationship is unique. At only 2,370 kilometers (1,470 mi) in diameter, Pluto isn’t even twice as large as its BFF, Charon, which has a diameter of 1,208 kilometers (750 mi). The two are also close, separated by an average distance under 20,000 kilometers (12,400 mi).

That’s close enough to share an atmosphere like an interplanetary Snuggie. Researchers predicted this in the 1980s because binary pairs and planets circling super close to their stars also share atmospheres.

Nearly 40 years later, astronomers have proof that some of Pluto’s nitrogen is trapped by Charon. Most gases funneled toward the gravitationally impotent moon escape into space but not all. Polar temperatures range from 60 Kelvin (-351 °F) to 15 Kelvin (-433 °F), and at these near-absolute-zero temperatures, the gases stick.

The Sun’s ultraviolet barrage irradiates them into tholins. With higher sublimation points, tholins remain frozen even during Charon’s summer, forming a reddish blotch at the north pole.

6. Pluto’s Mystery Nitrogen Source

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Photo credit: NASA/JHUAPL/SwRI

In Pluto’s hot pot atmosphere, the Sun bakes methane and nitrogen into more complex hydrocarbons, which clump in submicrometer aggregations. Together, they scatter sunlight to give Pluto its blue haze.

But the dwarf is too puny to hold its atmosphere, which is leaking into space at the alarming rate of hundreds of tons per hour. It’s unclear why Pluto hasn’t run out, but maybe the process was slower in the past and recently accelerated for some reason only Pluto knows.

More likely, Pluto holds a nitrogen supply inside its frozen bowels. Nitrogen probably wells up from within to resupply what’s lost to space and seasonal changes.

Comets may have delivered loads of nitrogen in the past and excavated more by punching through Pluto’s surface but probably not enough. Instead, Pluto is probably brewing up its own supply and releasing it in potentially radical ways, like geysers and volcanoes.

5. Pluto’s Heart

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Photo credit: NASA via The Independent

As New Horizons approached Pluto, the dwarf rotated into view and welcomed us with a heart, informally dubbed “Tombaugh Regio” after Pluto-finder Clyde Tombaugh.

It features a surprisingly smooth plain free of craters. Astronomers believe this “very young” region, Sputnik Planum, was active sometime within the last 100 million years - a heartbeat on cosmic timescales.

Sputnik Planum’s frozen plains are a grab bag of planetary oddities. Some areas look like cracked mudflats on Earth. Others are uncharacteristically hilly. Troughs line the region, with some dark substance oozing from below to fill the seams. Darker streaks are present across the plains, hinting at Pluto’s winds.

But why is Pluto such a pupu platter of terrains? Possibly convection, otherwise known as the lava lamp effect. Like rising wax globules, Pluto’s frozen carbon monoxide, nitrogen, and methane guts may be driven surface-ward by inner warmth.

Or this may all be the doing of a contracting crust. Like cracking paint, the surface of Pluto chips and fractures under the pressures of shifting materials.

4. Pluto’s Pits

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Photo credit: NASA/JHUAPL/SwRI

Pluto is so cold that it flirts with absolute zero, and at these temperatures, frozen substances seem to skip a stage of matter. Instead of melting, methane-laced ices sublimate, transitioning directly from solid to gas when warmed by the distant Sun.

Sublimation can take entire bites out of the dwarf planet. Likened to tooth marks, the western hemisphere’s Piri Rupes escarpment is a desolate, craggy wasteland. The plateau is edged with jagged cliffs and overlooks a lower, flatter area called Piri Planitia.

The highlands are rich in methane ices while the lowlands are stupid with water ice, which probably serves as the bedrock. The chemical discrepancy suggests that the plains are surfaces revealed as methane-ice cliffs sublimated away.

Tombaugh Regio has its own pits, which are relatively free of craters and the result of recent activity, possibly a combination of ice fracturing and evaporation. They look small, but that’s an illusion of distance.

3. Methane Snow

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Photo credit: NASA

Pluto boasts a snow-covered mountain range that juts from an enormous dark patch, informally known as Cthulhu Regio, that’s nearly 3,000 kilometers (1,850 mi) long. It girdles the dwarf planet, reaching almost halfway around its petite equator.

Seen from above, Cthulhu Regio is a collection of pits, craters, ravines, and dark red expanses. It seemed dead until New Horizons delighted us with images of snowcapped peaks made of methane.

The shining methane snow is striking against the much darker lowlands in the image above, which was taken from only 34,000 kilometers (21,000 mi) away. Astronomers think that the snow forms through a bizarre version of the process seen on Earth.

2. Pluto’s Blades

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Photo credit: NASA/JHUAPL/SwRI

In the eastern portion of Tombaugh Regio, Tartarus Dorsa is notable for its snakeskin-like terrain. Its “scales” are several miles apart and hundreds of feet high but otherwise remain a mystery. They may be deposits of methane ice or scars etched into the crust by evaporating substances.

They appear sturdy and are probably buttressed by methane clathrates, which form at ultralow temperatures. Clathrates are microscopic scaffolds, or cages, made of water in this case. On Pluto, they form a rigid shell around methane.

On Earth, clathrates formed deep in the ocean are weak and break easily. On an icy surface like Pluto’s, the cages may be strong enough to support the overlying snakeskin.

Tantalizingly, clathrates have been spotted in the Kuiper Belt and may predate the birth of the solar system, like time capsules from the protosolar nebula that birthed our Sun and planets.

1. Pluto’s Migrant Hills

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Photo credit: NASA/JHUAPL/SwRI via EarthSky

Pluto’s hills are fascinating. Unlike static landforms, they constantly migrate across Sputnik Planum. The hills are probably fractured cliffs from the surrounding highlands and fortified with steel-hard water ice. Like icebergs, they drift across Pluto’s frozen, nitrogenous glaciers.

Since nitrogen ices are less dense than water, they provide a perfect surface for the hills to skate on. Powered by convective forces from within Pluto, they’re deposited at the edges of “convective cells,” where they create landforms as large as 20 kilometers (12 mi) across. The largest of these is named Challenger Colles in honor of the Challenger crew.

But the hills are just baby versions of Pluto’s monster water-ice mountains. Frosted with frozen nitrogen, methane, and carbon dioxide, they tower 3,500 meters (11,500 ft) into the wispy atmosphere. At less than one hundred million years old, they’re among the youngest things in the entire solar system and possibly growing!

Top image: Animation combining various observations of Pluto over the course of several decades. Credit: NASA.

[Source: Listverse. Edited. Top image added.]