12 março 2015

Along the Cygnus Wall



The W-shaped ridge of emission featured in this vivid skyscape is known as the Cygnus Wall. Part of a larger emission nebula with a distinctive outline popularly called The North America Nebula, the cosmic ridge spans about 20 light-years. Constructed using narrowband data to highlight the telltale reddish glow from ionized hydrogen atoms recombining with electrons, the two frame mosaic image follows an ionization front with fine details of dark, dusty forms in silhouette. Sculpted by energetic radiation from the region's young, hot, massive stars, the dark shapes inhabiting the view are clouds of cool gas and dust with stars likely forming within. The North America Nebula itself, NGC 7000, is about 1,500 light-years away.



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NASA's MMS Spacecraft Launches on an Atlas V Rocket



The United Launch Alliance Atlas V rocket with NASA’s Magnetospheric Multiscale (MMS) spacecraft onboard launches from the Cape Canaveral Air Force Station Space Launch Complex 41, Thursday, March 12, 2015, Florida. NASA’s MMS mission studies the mystery of how magnetic fields around Earth connect and disconnect, explosively releasing energy via a process known as magnetic reconnection. MMS consists of four identical spacecraft that work together to provide the first three-dimensional view of this fundamental process, which occurs throughout the universe. Image Credit: NASA/Aubrey Gemignani



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Turn your handwriting into a font

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March 12, 1947: President Truman Presents the Truman DoctrineOn...





March 12, 1947: President Truman Presents the Truman Doctrine



On this day in 1947, President Truman presented Congress his vision of America’s role in a world threatened by communism. In an effort to prevent Greece and Turkey from falling under communism, Truman urged the U.S. to send those countries economic and military aid.



Learn more about the 33rd President of the United States with American Experience.


Photo: President Harry Truman, April 1945 (Library of Congress).


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Expedition 42 Soyuz Landing



The Soyuz TMA-14M spacecraft is seen as it lands with Expedition 42 commander Barry Wilmore of NASA, Alexander Samokutyaev of the Russian Federal Space Agency (Roscosmos) and Elena Serova of Roscosmos near the town of Dzhezkazgan, Kazakhstan on Wednesday, March 11, 2015 (Thursday, March 12, Kazakh time). NASA astronaut Wilmore, Russian cosmonauts Samokutyaev and Serova returned to Earth after almost six months onboard the International Space Station where they served as members of the Expedition 41 and 42 crews. The spacecraft touched down safely at approximately 10:07 p.m. EDT. Image Credit: NASA/Bill Ingalls



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March 12th 1930: Salt March beginsOn this day in 1930, the Salt...



Gandhi on the salt march





Mahatma Gandhi (1869 - 1948)



March 12th 1930: Salt March begins


On this day in 1930, the Salt March began in India as an act of protest against British colonial rule. The march was led by Indian activist Mohandas Gandhi, and saw thousands of protestors walk 240 miles from Ahmedabad to the Arabian Sea coast. It was one of the first major acts of civil disobedience in the movement for Indian independence from oppressive colonial rule. They were protesting the British monopoly on salt production and distribution that unfairly taxed Indian producers and consumers. When Gandhi initially embarked upon his march on March 12th he was accompanied by under one hundred followers. However as the march progressed it galvanised the local populations and thousands joined their cause. They reached the sea on April 5th, where the protestors defied the law by ‘producing’ salt when they picked up handfuls of salt on the shore. This exemplified the non-violent civil disobedience which characterised the Indian independence movement, as it was spearheaded by Gandhi. The salt protests resulted in the arrests of around 60,000 protestors across India - included Gandhi himself - which only spurred others to join the movement. On May 21st, the poet Sarojini Naidu led a march on a salt works which was broken up by police who brutally attacked the peaceful demonstrators. This violence was broadcast around the world, and drew international attention to the mistreatment of Indians under British rule. The salt marches led to Gandhi being included at a London conference on Indian policy, demonstrating that the British authorities had realised they could not ignore the independence movement. Indian independence was finally achieved in August 1947, after a long and hard fought battle for Indian freedom. Sadly, the leader of the salt marches - Gandhi - was assassinated in January 1948, only living to see a few months of his country’s long-awaited independence.


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Lenin and Stalin at Gorki, just outside Moscow. September 1922





Lenin and Stalin at Gorki, just outside Moscow. September 1922


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