This is What Denisovans May Have Looked Like

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This is an estimate of what Denisovan's may have looked like, based on a new DNAS analysis technique. (Credit: Maayan Harel) Every time archaeologists pry the remains of a newly-identified human ancestor from the earth, there’s one question we care about most: What did they look like? For the first time, researchers have tried to answer that burning query about Denisovans, one of the most intriguing ancient relatives on our family tree. Discovered in 2010 in a Siberian cave, these an ...read more

This Gut Bacteria Makes People Drunk Without Drinking — And Causes Liver Disease

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Klebsiella pneumoniae bacteria grown in culture. (Credit: Sirirat/Shutterstock) Three years ago, a woman in upstate New York was charged with drunk driving and then exonerated when she proved her high blood alcohol level was the result of a rare condition in which her body brews its own alcohol. At the time, the bizarre story made national headlines. Now, auto-brewery syndrome, as the condition is called, may have helped researchers unlock some of the secrets of a common but little-understo ...read more

Evaporating Exomoon Could Explain Weird Light Patterns of Tabby’s Star

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An artist’s concept of a ring of dust orbiting Tabby’s Star. (Credit: NASA/JPL-Caltech) About four years ago, one star gained notoriety when some astronomers suggested its weird light pattern could be signs of artificial “alien megastructures” blocking the star’s light. Though scientists generally say that clouds of gas and dust are most likely the culprit, the source of that gas and dust remains a mystery. One possibility is that the star, formally called KI ...read more

One Protein Makes Ebola Deadly. Scientists Can Turn it Off

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A sign in the Democratic Republic of the Congo warns people that Ebola is in the area. (Credit: Sergey Uryadnikov/Shutterstock) The Ebola virus continues to ravage populations across Africa. But earlier this week, researchers reported that they've figured out what makes Ebola just so virulent. One particular protein is giving Ebola its punch, and researchers know how to switch it off. The find could lead to new vaccines and may give a huge boost to Ebola research safety. Ebola's Sneak At ...read more

Misophonia, Or Why I Hate the Sound of Chewing Salad

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Misophonia is an aversive reaction to specific sounds that emerges in childhood, most often with annoyance that quickly turns to anger. (Credit: mamaza/Shutterstock) It was the salads that got me. On nights when my parents started off dinner with some leafy greens, I left the room. The habit quickly became a ritual, and to my family’s credit – or not –  no one ever remarked on it. It was just another quirk, like biting fingernails, or sticking your tongue out when you c ...read more

Two Asteroids Collided in Deep Space, Sparking an Ancient Ice Age

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This artist's concept captures the catastrophic collision that destroyed the parent body, which was bigger than any known asteroid break-up in the past 3 billion years. (Credit: Don Davis/Southwest Research Institute.) A giant collision between two asteroids may have triggered a global ice age that hit Earth some 466 million years ago. The cosmic crash — which took place between Mars and Jupiter and destroyed an asteroid some 93 miles (150 km) wide — created a thick plume of dust ...read more

Scientists Experiment With Growing Human Tissues on Tofu, Paper, Ice and More

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(Credit: ValentinaKru/Shutterstock) It’s been more than a decade since the first lab-grown organ (a more-or-less functional replacement bladder) was successfully implanted into a human body. But in the time since tens of thousands of people have been added to the organ donor waiting list in America alone. Scientists are still figuring out how to grow organs at a scale — and price — that can meet the needs of thousands of patients a year. One of the big challenges to crea ...read more

This Device Can Recommend the Best Cancer Treatment — Using Just a Patient’s Breath

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A patient breathes into the eNose, a tool designed to determine effective cancer treatments for lung cancer patients. (Credit: Amsterdam University Medical Centers) The newest cancer sniffer might not be as cute as a sharp-nosed canine, but it could give doctors a new way to determine the best treatment for patients using just the melange of compounds in their breath. The eNose can detect with 85 percent accuracy if a person will respond to immunotherapy say researchers in a paper publis ...read more

NASA CubeSat will Test Lunar Space Station Orbit

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The space agency hopes Lunar Gateway can serve as a jumping off point for exploring the Moon. First, NASA plans to test out the space station’s intended orbit. (Credit: NASA) NASA hopes to put humans back on the moon by 2024, starting with an orbiting space station dubbed Lunar Gateway. And the space agency is already showing signs of prepping for the upcoming missions. Recently, the organization announced it will partner with Advance Space, an aerospace company from Colorado, to d ...read more

Homo heidelbergensis: The Answer to a Mysterious Period in Human History?

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Cranium 5, a skull found at Sima de los Huesos and thought to be either a late Homo heidelbergensis or an early Neanderthal. (Credit: Rept0n1x/Wikimedia Commons) There’s a murky chapter in human evolution, one that occurs right before our species entered the scene. Over 1 million years ago our ancestors belonged to the primitive-looking species Homo erectus. Jump to 300,000 years ago and Earth is home to at least three lineages of big-brained humans: Homo sapiens, Neanderthals and D ...read more

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