World's oldest ax found in Australia
Australian National University archaeologists found the ax fragments in the early 1990s in Western Australia. At the time, carbon dating aged the ax incorrectly but using updated technology, scientists have now determined it is between 44,000 and 49,000 years old. "The question of when axes were invented has been pursued for decades. Since archaeologists discovered that in Australia axes were older than in many other places, now we have a discovery that appears to answer the question," said Pete..>> view originalWatch global warming spiral out of control in this new climate visualization
A climate scientist in the UK has devised a new way of visualizing the progression of human-caused global warming, and it is one that you've likely never considered before. Ed Hawkins, a climate scientist at the National Center for Atmospheric Science at the University of Reading, devised the spiral animation to show how global average surface temperatures are increasing relative to the average temperature during preindustrial times. "I wanted to try and visualise the changes we have seen in ..>> view originalNASA Finds 1284 Alien Planets, Biggest Haul Yet, with Kepler Space Telescope
The number of known alien planets has just gone up by more than 60 percent. NASA's Kepler space telescope has discovered 1,284 new exoplanets, including nine rocky worlds that might be capable of supporting life as we know it, astronomers announced today (May 10). This is by far the largest haul of alien planets ever unveiled at one time. The total exoplanet tally now stands at about 3,200, and Kepler has found 2,235 of them, NASA officials said. [1,284 Exoplanets Found: NASA's Keple..>> view originalScientists have detected oxygen on Mars - and it could reveal something fascinating about the planet's past
Thomson Reuters For the first time in four decades, a team of researchers has found atomic oxygen lingering in the upper Martian atmosphere. But don't get carried away too quickly — atomic oxygen is very different from the stuff we breathe. But it does affect how easily gases escape the Martian atmosphere, so these measurements will likely help uncover more about why and how the protective gases enveloping Mars eroded over the last few billions of years. If Mars ever supported life, those gases..>> view originalArtificial intelligence: Key to Kentucky Derby betting?
You probably didn't consider basing your Kentucky Derby bets on artificial intelligence -- but maybe you should have. The artificial intelligence company Unanimous tested its new software platform, UNU, on last weekend's Kentucky Derby, as reported by TechRepublic. Twenty participants, convened by the company, first used the software to narrow the field of 20 horses down to four top picks. The participants then used UNU to predict the winning order -- and it turned out to be 100 percent correct..>> view originalAncient trade routes written in camel genes
Image copyright Mark Payne-Gill/NPL Image caption Ships of the desert: camels provide transport, milk and food in arid, hostile environments A study of one of the world's most important domesticated animals - the dromedary camel - has revealed how its genetic diversity has been shaped by ancient trade routes. Scientists examined DNA samples from more than 1,000 one-humped camels. Despite populations being hundreds of miles apart, they were genetically..>> view originalStudy Casts Doubt on Theory That Legal Hunting Reduces Poaching
Photo A howling gray wolf. Authors of a study on wolves in Wisconsin and Michigan say they have quantitative evidence that government authorization of legal killing of wolves appears to also increase illegal killing. Credit Tim Fitzharris/Minden Pictures Government wildlife authorities and some conservation groups have for years argued that allowing some legal hunting can help reduce the illegal killing of threatened carnivores like wolves and grizzly bears.Their theory..>> view originalSecrets of life on early Earth — and other planets — may be trapped in ancient gas bubbles
The layers on this 2.7-billion-year-old rock, a stromatolite from Western Australia, show evidence of single-celled, photosynthetic life on the shore of a large lake. The new result suggests that this microbial life thrived despite a thin atmosphere. (Roger Buick/University of Washington) Some 2.7 billion years ago, lava started oozing out of a crack in the planet in what is now Australia. It spread and spread, flowing out in every direction until it hit seawater. Then, swiftly, it hardened ..>> view originalFacebook identifies one of 2030 new plants found in 2015
More than 300 years since a Swedish scientist called Carl Linnaeus published the first book describing 100 types of plant, biologists are still discovering new species.Last year, experts officially classified 2,034 plants that had never before been seen. The new finds include a huge insect-eating sundew discovered via Facebook, five new types of onion, a 10ft-tall (3 metre) slipper orchid and a close relative of the sweet potato.However, the report also warned that a fifth of all types of plants..>> view originalNew Topographical Map Shows All of Mercury's Mountains and Valleys | The Weather Channel
A new topographical map released by the Johns Hopkins University Applied Physics Laboratory on Friday shows that Mercury would be a hiker’s dream, minus the temperatures that reach over 800 degrees Fahrenheit, of course.About one year after the Messenger, a spacecraft that spent nearly five years orbiting the closest planet to the sun, ended its mission by slamming into Mercury, scientists revealed the first global elevation map of the planet ever produced.The APL found the planet’s highest poin..>> view original
Wednesday, May 11, 2016
World's oldest ax found in Australia and other top stories.
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