Test your smarts on the universes brightest flash and the worlds hottest

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first_img About 30% Top Ranker Time’s Up! Average Monsoon air pockets Dead birds. Scientists have always wondered how lizards, insects, and even foxes survive in Iran’s Lut Desert, which—with a maximum temperature of 70.7°C—blows Death Valley out of the water as the hottest place on Earth. A few years ago, researchers pondered whether migratory birds were the key, passing out from the extreme heat and falling from the sky to form the base of the food web. Now, a new expedition has confirmed that hypothesis and posited one more: that the bone-dry landscape conceals a “hidden sea” of salty groundwater just beneath the surface. Soy and chips Score A black hole gorging on a star. The flash, seen in 2015, was thought to be a superluminous supernova, the result of a massive star collapsing under its own gravity and spewing out a fireball of hot dust and gas. At the time, the event was twice as bright as the previous record holder. But further investigation revealed the flash was close to the heart of a burned-out galaxy, rather than a stellar breeding ground, and that it came from a low-mass star in the prime of its life. The most likely explanation, scientists say, is that the young star was torn to pieces by a spinning black hole more than 100 million times the mass of our sun. The Science Quiz tests your knowledge of the week’s biggest science news stories. No matter how much you know, you’re still likely to learn something–give it a try! Warming temperatures are also doing a number on this creature, whose body size is 12% smaller than it was some 2 decades ago: They injected stem cells into their spinal fluid. About 10% An error occurred loading the Quiz. Please try again later. 10-year thunderstorms It didn’t impress large-brained females. Earlier this year, scientists called a brilliant flash in the sky “the brightest supernova ever detected.” Now, they’re having second thoughts. What are they saying it might be instead? Spam and chips How did you score on the quiz? Challenge your friends to a science news duel! Didier Descouens/Muséum de Toulouse/Wikimedia Commons What did scientists recently do to reset the aging clock in mice? How does life survive in the world’s hottest desert? Reindeer It made walking upright more difficult. They artificially capped their telomeres. Moose Department of Energy (DOE). When Donald Trump’s transition team sent a list of 74 questions to DOE last week asking—among other things—for the names of workers involved in international climate talks and carbon-cutting initiatives, scientists across the agency felt a chill. Although the incoming administration has since backtracked on the ask, DOE officials initially refused to turn over any names—though they did agree to answer the rest of the questions. A black hole gorging on a star Horses. Six of them, in fact—Cuartetera 01 through Cuartetera 06. Adolfo Cambiaso rode them to victory in the Argentine Polo Open championship, a high-profile event in Buenos Aires. Critics said the clones could never perform as well as the original mare, thanks to environmental influences that could potentially modify gene activity. But now it looks like Cambiaso is having the last laugh. “They thought I was crazy,” he said in an interview with a leading newspaper in Argentina. “And today it seems that I was not so crazy, right?” Polar bears An underground network of fungus The Science Quiz Physics December 16, 2016 Click to enter Roosters December 16, 2016 The Science Quiz Take the quiz to enter for a chance to win a FREE digital subscription to Science! Learn More Official rules for the News from Science weekly quiz sweepstakes And for those of you still following your Nobel news, a leading scientist just claimed that the citation for the 2015 Nobel Prize in this category is wrong: In other genetic news, an Argentine sportsman won a major tournament this month by using what cloned animals? About 50% ESO, ESA/Hubble, M. Kornmesser A new study suggests that pregnant women infected with Zika virus miscarry or have children with birth defects at a much higher rate than thought. What is that rate? Squirrels and chipscenter_img Win a FREE digital subscription to Science! Just submit the required contact information to enter. Share your score Reindeer. According to a new study, the average body mass of Svalbard reindeer in Norway has gone from 55 kilograms to 48 since 1994. That’s because their diet of grasses, lichens, and mosses is locked away under a layer of ice that forms on top of snow when warming temperatures cause early rainfall. Though the numbers might not seem extreme, reindeer size has reached a critical point: Female reindeer below 50 kilograms give birth to smaller calves and even naturally abort their fetuses to save themselves if too little food is available. Question Snowy owls Dead birds 0 / 10 They tweaked their epigenetic marks. Last week, British government scientists said that, thanks to warming oceans, this dish might soon replace fish and chips on dinner tables across the United Kingdom: Environmental Protection Agency Start Quiz A pulsar in its death throes Economics They tweaked their epigenetic marks. Like hair and skin, our chromosomes show our age. Chromosomes carry molecular attachments, known as epigenetic marks, which control how active genes are. As we get older, the arrays of these marks change, fouling up the precisely coordinated patterns of gene activity that keep our cells working. Now, by using these marks to turn on a few genes normally active only in embryos, scientists have “reprogrammed” adult body cells into youthful stem cells in mice, boosting their life spans and refurbishing some of their tissues. Department of Energy Physics. The 2015 Nobel Prize in Physics honored leaders of two experiments “for the discovery of neutrino oscillations, which shows that neutrinos have mass.” But now, a prominent theoretical physicist says: not so fast. Even though the two winners deserved the prize, he says, only one of their experiments actually proved neutrino oscillations. Intrigued? Read Adrian Cho’s account of how meshing mass states and cosmic rays made the discovery possible. About 50%. The study, the first to look at what happened to pregnant women known to be infected, suggests that carrying the virus at any stage of pregnancy—not just the final trimester—is far more dangerous than realized. The results build on an earlier report that found nearly a third of women infected in the third trimester develop complications that affect their babies. In the new study, 46% of women at all stages of pregnancy experienced “adverse outcomes,” including miscarriage, infant brain calcification, and brain hemorrhages. A J. J. Abrams lens flare Results: You answered out of correctly – Click to revisit Chemistry LOADING 0 Department of Defense Enter the information below to enter the sweepstakes:Your information has been submitted.An error occurred submitting the email. Please try again later.This email has already been entered.The email submitted is not a valid email.Incomplete form. Please fill out all fields. 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I would like to receive emails about products and services offered by AAAS advertisers.PRIVACY I have read and accept the Terms of Service and Privacy Policy.Submit Squid and chips. The Brits love their squirrels! But they also love their haddock and cod (in a different way, of course). The only problem is that ocean waters around the British Isles are warming so quickly that stocks of cold-water fish are rapidly migrating northward: The center of distribution for cod is now off the coast of Norway. Meanwhile, warm-water creatures like sardine and squid are leaving the seas of France, Spain, and Portugal for the comfortable climes of the North Sea, whose temperature has risen 1.7° C since the early 1980s. Calamari, anyone? Department of the Interior A Dyson sphere Pigeons About 75% In the United States, this government department has refused to hand over to the incoming Trump administration the names of scientists who worked on climate-related issues: Dogs Not a good idea for that narrowing female pelvis. Physiology or Medicine You It didn’t aid monogamous intercourse. Why did humans likely lose their penis bone, according to a new study? It didn’t aid monogamous intercourse. Despite colloquialisms that imply otherwise, the human penis has no bones. The same cannot be said of our closest relatives, including chimpanzees and bonobos. To find out why, scientists traced the evolutionary history of the baculum (as the bone is known), which evolved between 145 million and 95 million years ago. It turns out that primates with ossified penises can penetrate for longer periods of time—advantageous in polygamous species, which experience intense competition for fertilization. To make sure a female isn’t mating with other males, her gentleman callers simply spend more time having sex with her. And that’s where the baculum comes in, holding open the urethra and supporting the penis. (Even so, a plus-one if you went for large-brained females!) Squid and chips Horses Enter for a chance to win. We’ll select a new winner each week. The faster you answer, the higher you score! Challenge your friends and sign up for your chance to win a free digital subscription to Science. They treated them with human growth hormone.last_img

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