2019 Nobel Prizes: What you can learn from this year's winners

From literature to physics, the annual Nobel Prizes aim to highlight the most groundbreaking achievements in every field.

2019 Nobel Prizes: What you can learn from this year's winners
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  • Each year, the Royal Swedish Academy of Sciences awards six Nobel Prizes.
  • The categories are: literature, physics, chemistry, peace, economics, and physiology & medicine.
  • The Nobel prizes will be announced each business-day until October 14.

Nobel Peace Prize

Ethio­pian Prime Minister Abiy Ahmed Ali won the Nobel Peace on Friday for helping to resolve the border conflict with neighboring Eritrea.

Eritrea and Ethiopia, two of the world's poorest nations, fought a war against each other from 1998 to 2000. A peace treaty in 2000 stopped the large-scale fighting, but a stalemate ensued, and both sides have in recent years accused the other of sparking smaller border clashes.

But after taking office in 2018, Abiy pursued peace talks with Eritrea.

"In close cooperation with Isaias Afwerki, the President of Eritrea, Abiy Ahmed quickly worked out the principles of a peace agreement to end the long "no peace, no war" stalemate between the two countries," the academy wrote.

"He spent his first 100 days as Prime Minister lifting the country's state of emergency, granting amnesty to thousands of political prisoners, discontinuing media censorship, legalising outlawed opposition groups, dismissing military and civilian leaders who were suspected of corruption, and significantly increasing the influence of women in Ethiopian political and community life. He has also pledged to strengthen democracy by holding free and fair elections."

Still, ethnic conflicts within Ethiopia have displaced more than 3 million people in recent years, and critics of Abiy – who's already survived one assassination attempt – argue that his policies will make matters worse.

"No doubt some people will think this year's prize is being awarded too early," the academy wrote. "The Norwegian Nobel Committee believes it is now that Abiy Ahmed's efforts deserve recognition and need encouragement."

Last year's Nobel Peace Prize was awarded to Dr. Denis Mukwege, a Congolese gynecologist, and Nadia Murad, a Yazidi woman and former captive of ISIS, for helping to combat wartime sexual assault.

Nobel Prize: Literature

The Swedish Academy awarded two writers the Nobel Prize in Literature: The Polish author and poet Olga Tokarczuk received the 2018 award, and the 2019 prize went to Austrian author and playwright Peter Handke.

Last year's Nobel Prize in Literature was postponed due to a sexual assault scandal involving the husband of an academy member. After the scandal, several board members departed and the academy changed the way it chooses winners.

Peter Handke

Handke is a 76-year-old Austrian playwright, novelist, essayist, and poet who gained acclaim early in his career for his avant-garde play "Offending the Audience." He's also written many scripts for films, including Die linkshändige Frau (The Left–Handed Woman), which in 1978 was nominated for the Golden Palm Award at the Cannes Film Festival.

But Handke's win is proving controversial. The writer is a well-known apologist for former Serbian leader Slobodan Milosevic, who was accused by a United Nations tribunal of war crimes related to wars in Kosovo, Croatia, and Bosnia. In his writings, Handke controversially portrayed Serbia as a victim of the Yugoslav Wars. Although Handke declined Milosevic's request to appear as a witness at his U.N. trial., the writer did eulogize Milosevic after he died in prison awaiting trial.

"I think he was a rather tragic man," Handke said in a 2006 interview. "Not a hero, but a tragic human being. I am a writer and not a judge."

Surprisingly, in 2014 Handke said the Nobel Prize for literature "should be abolished" because it "promotes the false canonization of literature."

A handful of writers and literary organizations have already denounced the academy's decision to award the prize to Handke.

"We are dumbfounded by the selection of a writer who has used his public voice to undercut historical truth and offer public succor to perpetrators of genocide, like former Serbian President Slobodan Milosevic and Bosnian Serb leader Radovan Karadzic," the novelist Jennifer Egan, who is president of PEN America, said in a statement on behalf of the organization. "At a moment of rising nationalism, autocratic leadership, and widespread disinformation around the world, the literary community deserves better than this. We deeply regret the Nobel Committee on Literature's choice."

"Have we become so numb to racism, so emotionally desensitized to violence, so comfortable with appeasement that we can overlook one's subscription and service to the twisted agenda of a genocidal maniac?" tweeted Vlora Citaku, Kosovo's ambassador to the United States.

Olga Tokarczuk

Tokarczuk, who also won last year's Man Booker International Prize for her novel "Flights," is the 15th woman to win the Nobel Prize for literature. The judges described her as "a writer preoccupied by local life ... but looking at earth from above ... her work is full of wit and cunning," and said she possesses "a narrative imagination that with encyclopedic passion represents the crossing of boundaries as a form of life."

Tokarczuk is a controversial figure in Poland, a nation dominated by right-wing populist politics, which she frequently criticizes. After she criticized Poland's history of colonialism in a 2014 interview, some right-wing nationalists called her a "targowiczanin," an archaic term for traitor.

Some of Tokarczuk's works to check out include: "The Journey of the Book-People," "Primeval and Other Times," and the screenplay for the crime film "Spoor", which was nominated for best foreign language film at the 2018 Oscars.

Nobel Prize: Physics

How did the Big Bang produce the swirling galaxies that populate our universe, and how can scientists detect and study planets that orbit stars light-years away from Earth? The 2019 Nobel Prize in Physics goes to three scientists who helped shed light on these complex questions.

James Peebles, the Albert Einstein professor of science at Princeton, received half of the award, which includes half of the $918,000 prize money. Michel Mayor, an astrophysicist and professor emeritus of astronomy at the University of Geneva, and Didier Queloz, a professor of physics at the Cavendish Laboratory at Cambridge University and at the University of Geneva, together share the other half of the prize.

"While James Peebles' theoretical discoveries contributed to our understanding of how the universe evolved after the Big Bang, Michel Mayor and Didier Queloz explored our cosmic neighborhoods on the hunt for unknown planets. Their discoveries have forever changed our conceptions of the world," the secretary-general of the Royal Swedish Academy of Sciences, Goran Hansson, said.

How Dr. Peebles enriched cosmology

Since the 1960s, Dr. Peebles' work has helped to solidify and enrich cosmology, chiefly by finding ways to learn about the universe from the ancient radiation leftover from the Big Bang.

Some 400,000 years after the Big Bang, the universe cooled enough for light rays to travel through space. Today, billions of years later, this ancient radiation is still around us, though its temperature is near absolute zero. But Dr. Peebles discovered that the temperature of this background radiation provides clues about how much matter was created by the Big Bang.

The calculations made possible by this discovery also shed light on the matter and processes in the universe that we can't see: dark energy and dark matter.

"The results showed us a universe in which just five per cent of its content is known, the matter which constitutes stars, planets, trees – and us," the academy wrote. "The rest, 95 per cent, is unknown dark matter and dark energy. This is a mystery and a challenge to modern physics."

Mayor and Queloz: Finding exoplanets

Astronomers detect exoplanets by measuring extremely subtle changes in a star's activity. These changes occur as exoplanets orbit their host star, and the predictability of the changes allows scientists to learn quite a lot about the properties of exoplanets. In 1995, Mayor and Queloz used this approach to discover the first planet outside of our solar system. It might sound surprising to us today, but before their discovery astronomers considered that maybe it was extremely rare for stars to have planets orbiting them, meaning life outside of Earth would be even more unlikely, if not impossible.

"This discovery started a revolution in astronomy and over 4,000 exoplanets have since been found in the Milky Way," the academy wrote. "Strange new worlds are still being discovered, with an incredible wealth of sizes, forms and orbits. They challenge our preconceived ideas about planetary systems and are forcing scientists to revise their theories of the physical processes behind the origins of planets. With numerous projects planned to start searching for exoplanets, we may eventually find an answer to the eternal question of whether other life is out there."

Nobel Prize: Medicine

Photo by Xinhua/Zheng Huansong via Getty Images

The 2019 Nobel Prize in medicine was awarded to three scientists from the U.S. and U.K. working independently on the same problem: how cells sense and adapt to oxygen availability. Gregg Semenza of Johns Hopkins University, Sir Peter Ratcliffe of Oxford University, and William Kaelin, Jr., of Dana-Farber Cancer Institute/Harvard University received the 5 a.m. call from Stockholm. The three maintained an ongoing and informal conversation, sharing work and consequentially rocketing the entire field of study forward.

Their research unveiled a genuine textbook discovery. "They've unveiled the series of molecular events that allow cells to assess and respond to changing levels of available oxygen, with implications in the treatment of cancer, heart attacks, strokes, anemia, and other diseases," according to previous Big Think reporting. Read the full article dedicated to the findings here.

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Astronomers find more than 100,000 "stellar nurseries"

Every star we can see, including our sun, was born in one of these violent clouds.

Credit: NASA / ESA via Getty Images
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This article was originally published on our sister site, Freethink.

An international team of astronomers has conducted the biggest survey of stellar nurseries to date, charting more than 100,000 star-birthing regions across our corner of the universe.

Stellar nurseries: Outer space is filled with clouds of dust and gas called nebulae. In some of these nebulae, gravity will pull the dust and gas into clumps that eventually get so big, they collapse on themselves — and a star is born.

These star-birthing nebulae are known as stellar nurseries.

The challenge: Stars are a key part of the universe — they lead to the formation of planets and produce the elements needed to create life as we know it. A better understanding of stars, then, means a better understanding of the universe — but there's still a lot we don't know about star formation.

This is partly because it's hard to see what's going on in stellar nurseries — the clouds of dust obscure optical telescopes' view — and also because there are just so many of them that it's hard to know what the average nursery is like.

The survey: The astronomers conducted their survey of stellar nurseries using the massive ALMA telescope array in Chile. Because ALMA is a radio telescope, it captures the radio waves emanating from celestial objects, rather than the light.

"The new thing ... is that we can use ALMA to take pictures of many galaxies, and these pictures are as sharp and detailed as those taken by optical telescopes," Jiayi Sun, an Ohio State University (OSU) researcher, said in a press release.

"This just hasn't been possible before."

Over the course of the five-year survey, the group was able to chart more than 100,000 stellar nurseries across more than 90 nearby galaxies, expanding the amount of available data on the celestial objects tenfold, according to OSU researcher Adam Leroy.

New insights: The survey is already yielding new insights into stellar nurseries, including the fact that they appear to be more diverse than previously thought.

"For a long time, conventional wisdom among astronomers was that all stellar nurseries looked more or less the same," Sun said. "But with this survey we can see that this is really not the case."

"While there are some similarities, the nature and appearance of these nurseries change within and among galaxies," he continued, "just like cities or trees may vary in important ways as you go from place to place across the world."

Astronomers have also learned from the survey that stellar nurseries aren't particularly efficient at producing stars and tend to live for only 10 to 30 million years, which isn't very long on a universal scale.

Looking ahead: Data from the survey is now publicly available, so expect to see other researchers using it to make their own observations about stellar nurseries in the future.

"We have an incredible dataset here that will continue to be useful," Leroy said. "This is really a new view of galaxies and we expect to be learning from it for years to come."

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Tiny specks of space debris can move faster than bullets and cause way more damage. Cleaning it up is imperative.

  • NASA estimates that more than 500,000 pieces of space trash larger than a marble are currently in orbit. Estimates exceed 128 million pieces when factoring in smaller pieces from collisions. At 17,500 MPH, even a paint chip can cause serious damage.
  • To prevent this untrackable space debris from taking out satellites and putting astronauts in danger, scientists have been working on ways to retrieve large objects before they collide and create more problems.
  • The team at Clearspace, in collaboration with the European Space Agency, is on a mission to capture one such object using an autonomous spacecraft with claw-like arms. It's an expensive and very tricky mission, but one that could have a major impact on the future of space exploration.

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