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Blue Eyes Originated from a Single Ancestor Thousands of Years Ago

Study: Everyone with blue eyes has the exact same ancestor from over 7 thousand years ago, who was born with the mutation.

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We so often take for granted the color of our eyes. Whether our eyes are brown, blue or green, we see this as a cosmetic difference and nothing more. We just assume that those with blue eyes have always been around and populated the world as densely as those with other eye colors. Basically, we just take it for granted. But have you ever wondered why our eyes have different colors?

It may surprise you to know that the human race all started out with the same eye color, brown. The differences in eye color came from variances, and in some extremes, such as the color blue, a single mutation was involved.

According to a study, everyone with blue eyes has the exact same ancestor from over 7 thousand years ago, who was born somewhere in the black sea region with the mutation.

Professor Hans Eiberg from the Department of Cellular and Molecular Medicine at the University of Copenhagen states, “A genetic mutation affecting the OCA2 gene in our chromosomes resulted in the creation of a “switch,” which literally “turned off” the ability to produce brown eyes.”

Professor Eiberg, through exhaustive study from the year 1996, traveled to areas of the world like Turkey, Jordan and Denmark, to study the eye color blue. Through this study of the mitochondrial DNA, the professor discovered the location of the gene for eye color.

The OCA2 gene is programmed to produce melanin, which is responsible for hair and skin color, as well as eye color. The “switch” is located adjacent to the OCA2 gene and actually only inhibits the melanin producing abilities to a small extent, thus creating the blue eyes instead of an area completely void of melanin.

When melanin is completely absent, the human being experiences albino characteristics.

Taking a closer look at this process enables us to understand why the eye color blue is derived from one ancestor. Since this eye color comes from an exact variance in melanin, it is considered to be a marker passed from a single ancestor. In individuals with green or hazel eyes, the color variances are more random in change and cannot be pinned down to a single occurrence.

The eye color blue did indeed originate from one genetic mutation. However, there are no indications that the differences in our eye color have anything to do with our health or performance in life. In the past, these genes played no part in our ability to survive, unless it was derived from fear or dislike by others.

No matter what our blue-eyed ancestor had to endure, it is clear that the mutation survived and proves just how incredible nature is at shuffling our genes to create something entirely different, and just as beautiful.

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Health

3D-Printed ‘Suicide Pod’ Gets Legal Approval in Switzerland, Could Roll Out In 2022

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Switzerland is among a small group of countries, mainly in Europe, that allows for people to end their own lives under strict provisions through the assistance of a licensed physician.

However, one company in the Alpine nation is hoping to streamline legalized euthanasia by removing doctors from the process through a new invention that allows people to end their own lives quickly and painlessly. And now, the device has passed an important review by Swiss legal authorities.

Nonprofit company Exit International has produced a 3D-printed suicide chamber dubbed the “Sarco,” reports  Swiss Broadcasting Corporation. The 21st-century sarcophagus-like machine could roll out as soon as 2022.

Those faced with terminal disease and other excruciating physical conditions, as well as severe psychological pain, will be able to make a clean exit from this mortal coil by lying comfortably inside the small chamber. At the press of a button, the chamber will then fill with nitrogen gas, depriving them of oxygen and terminating their life in 30 seconds.

“There is no panic, no choking feeling,” said Philip Nitschke, the nonprofit’s founder who has been dubbed “Dr. Death” by media.

The chamber is also easy to transport, allowing people to end their lives wherever they choose – be it in a cabin in the forest, at the beach, or anywhere else they might choose.

The device is controversial, however, due to the fact that it removes medical professionals from the process of euthanasia. However, Exit International hopes that it can develop an AI-assisted online exam that can gauge the mental acuity of those who wish to use Sarco.

“We want to remove any kind of psychiatric review from the process and allow the individual to control the method themselves,” Nitschke explained.

If you are experiencing thoughts of suicide and live in the United States, call the National Suicide Prevention Lifeline at 1-800-273-8255 (TALK). You can find a list of helpful resources at SpeakingOfSuicide.com/resources. Resources in other countries can be found here.

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Chinese Military Satellite Smashed by Russian Rocket in “Major Confirmed Orbital Collision”

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In an incident that is likely illustrative of things to come, Chinese military satellite 1-02 was smashed after it appears to have collided into the debris from a disintegrating Russian rocket.

The collision, which occurred earlier this year, shows the increasing danger of space junk such as satellite parts and other miscellaneous jetsam littering the Earth’s orbit. An estimated 8,000 metric tons of space debris pose the risk of destroying functional equipment such as weather forecasting systems, telecoms and GPS systems – and even manned space travel missions – if the problem isn’t reined in.

The fate of the Chinese satellite was uncovered by Harvard astrophysicist and satellite tracker Jonathan McDowell.

The breakup of Yunhai 1-02 was initially reported by the U.S. Space Force’s 18th Space Control Squadron (18SPCS). However, it wasn’t until recently that McDowell found out what caused the breakup.

The astrophysicist soon found that it was destroyed by space junk that originated from a Russian Zenit-2 rocket that had launched a spy satellite in 1996. On Aug. 14, McDowell found a strange entry in a database on Space-Track.org: “Collided with satellite.”

 “This is a new kind of comment entry — haven’t seen such a comment for any other satellites before,” McDowell tweeted.

“A quick analysis of the TLEs show that Yunhai 1-02 (44547) and [the debris object] passed within 1 km of each other (so within the uncertainty of the TLEs) at 0741 UTC Mar 18, exactly when 18SPCS reports Yunhai broke up,” he added, noting that this “looks to be the first major confirmed orbital collision in a decade.”

However, the Yunhai satellite still remains functional and is transmitting radio signals, notes Space.com.

The incident shows the growing likelihood of such collisions in the high-traffic, littered near-Earth orbital zone.

“Collisions are proportional to the square of the number of things in orbit,” McDowell explained. “That is to say, if you have 10 times as many satellites, you’re going to get 100 times as many collisions.”

He added: “So, as the traffic density goes up, collisions are going to go from being a minor constituent of the space junk problem to being the major constituent. That’s just math.”

A worst-case scenario of such collisions is known as the “Kessler Syndrome,” and describes the possibility of one collision setting in motion a chain of collisions. Such a disaster was the premise of the 2013 film “Gravity.”

One hopes that things don’t reach that point.

In the meantime, however, there have been a number of initiatives meant to tackle the growing problem of space debris, such as the ELSA-d spacecraft launched in a demonstration mission earlier this year.

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Boston Dynamics Drops New Video Of 5-Foot Atlas Humanoid Robot Effortlessly Doing Parkour

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Robot maker Boston Dynamics has released new video of its two-legged Atlas robot effortlessly completing a parkour obstacle course, offering a new display of its humanoid machines’ unsettling repertoire.

In the video, a pair of Atlas robots can be seen leaping over large gaps, vaulting beams, and even performing backflips. The robot can even be seen jumping over a board while using its arm to remain steady.

While the display seems like anything but “free” running – as the original developers of parkour had envisioned – the routine does seem like an impressive, if terrifying, display of effective coding that took months to perfect, according to the Hyundai-owned robotics firm.

“It’s not the robot just magically deciding to do parkour, it’s kind of a choreographed routine, much like a skateboard video or a parkour video,” said Atlas control lead Benjamin Stephens.

See for yourself:

Unlike its robotic dog Spot, which controversially hit New York City streets last year before being pulled, Atlas isn’t a production robot. Instead, it’s a research model meant to see how far the limits of robotics can be pushed.

In the past, Boston Dynamics has displayed the robot’s feats with videos of Atlas jogging and even busting out some cool dance moves.

Team lead Scott Kuindersma said in a statement that in about two decades, we can expect to coexist with robots that move “with grace, reliability, and work alongside humans to enrich our lives.”

Until then, some of us will continue to reserve our right to feel a bit queasy about the prospect of people being chased down by these skilled free-running (and dancing) machines.

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