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Where did the stones come from to build Stonehenge? Scientists now know. – 7NEWS.com.au

Researchers have finally figured out one of the greatests secrets of the mysterious prehistoric stone circle known as Stonehenge.

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For thousands of years, Britains Stonehenge has held tight to many of its secrets.
Now, scientists say in a study published Wednesday they have uncovered one: The origin of many of the stones that make up the mysterious prehistoric stone circle thought to date from 2,500 BC.
The monument erected during the late Neolithic period is a popular tourist attraction in southern England and one of the countrys most famous sights.
But despite its popularity, much is still not known about the UNESCO Wo…

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Investigation begins into damage at one of the world’s most iconic observatories – Armenian Reporter

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This week, the Arecibo Observatory in Puerto Rico an iconic facility made famous by movies like Contact and Goldeneye had to halt observations of the Universe after a structural cable failed, punching a hole in the facilitys giant reflector dish. Operators of the observatory say the overall facility is mostly fine, but theyre working to figure out exactly what went wrong.
The majority of that primary reflector is in good shape.
The majority of that primary reflector is in good shape, but our f…

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Towering dust devils, ancient dunes, and avalanches: 12 stunning images from NASA’s Mars orbiter on its 15th anniversary – Business Insider Australia

NASA’s Mars Reconnaissance Orbiter left Earth on August 12, 2005 – almost exactly 15 years ago. The satellite began circling the red planet on March 10, 2006, and since then it has studied Martian temperatures, detected minerals on the planet’s surface, and t…

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  • NASA’s Mars Reconnaissance Orbiter has taken nearly 7 million pictures of the red planet since leaving Earth 15 years ago.
  • From dust storms to avalanches, the images reveal details of Mars’ surface and weather patterns.
  • Here are 12 of the most beautiful visuals the orbiter has captured so far.
  • Visit Business Insider’s homepage for more stories.

NASA’s Mars Reconnaissance Orbiter left Earth on August 12, 2005 – almost exactly 15 years ago. …

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A Light Bright and Tiny: NIST Scientists Build a Better Nanoscale LED – Mirage News

Credit: B. Nikoobakht, N. Hanacek/NIST The fin LED pixel design includes the glowing zinc oxide fin (purple), isolating…

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Credit:B. Nikoobakht, N. Hanacek/NIST
The fin LED pixel design includes the glowing zinc oxide fin (purple), isolating dielectric material (green), and metal contact (yellow atop green). The microscopic fins, which the research team arranged into comb-like arrays, show an increase in brightness of 100 to 1,000 times over conventional submicron-sized LED designs.
A new design for light-emitting diodes (LEDs) developed by a team including scientists at the National Institute of Standards and Te…

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