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Wednesday, June 27, 2012

Two planets very close to each other


Two exoplanets, a rocky like Earth and other gaseous like Neptune, evolve to a very small distance from each other, a discovery that intrigues astronomers who had never observed a similar phenomenon.
It is like imagining that instead of a full moon rising on the horizon, lifted a giant gas planet appears to be three times bigger than this, say the researchers, whose work was published Thursday in the U.S., in the online edition of the journal Science.

Tuesday, June 26, 2012

Astronomy in India 2,300 years ago to celebrate the summer solstice


Astronomy enthusiasts gathered at the Jantar Mantar astronomical observatory in the capital of India, to calculate the size of the Earth following the methodology of 2,300 years ago the Greek scholar Eratosthenes.
The event was promoted by the International Association Space and was attended throughout the morning a few curious tourists visiting the XIII century observatory located in central Delhi, and many lovers of astronomy.

China make its first manual dock space


Three Chinese astronauts in a space capsule on Sunday dramatic the first manual docking home with another spacecraft, a new step in China's efforts to achieve the accomplishments of the United States and Russia in space.
The coupling between 9 and Shenzhou orbital module Tiangong 1 was broadcast live on national television. Both ships had been fitted on 18 June, but the maneuver was carried out by remote control from a base in China.

Europe sets out to explore the "dark side" of the Universe


The European Space Agency (ESA) has given the green light to the Euclid mission to be launched in 2020 with the aim to study the mysterious dark energy that makes up 73% of the universe. The Euclid mission will feature a 1.2-meter telescope that will nourish a chamber diameter of 576 million pixels with very high resolution images of galaxies 2,000 million, equivalent to the Hubble telescope.
With these data, and using infrared technology, scientists will develop a mapping of large structures in the universe and measure the distance between galaxies captured by the camera.

Monday, June 25, 2012

Accurate topography of the seabed with CryoSat



The European Space Agency (ESA) will use its satellite CryoSat, and altimeter that incorporate, to monitor the seabed. Experts expect this mission, combined with three or more years of ocean mapping, will lead to a global seafloor topography (bathymetry) between two and four times more accurate than currently available measures.

Reproduce of a structure of five rings


A team of scientists has shaped and reproduced the structure of 5-membered ring as small as possible, about 100,000 times thinner than a human hair. A collaboration between the Royal Society of Chemistry, University of Warwick, both in the UK, and IBM Research - Zurich (Switzerland), has allowed researchers to give life to a single molecule in an image, using a combination of synthetic chemistry intelligent, and imaging techniques.

manage to cut graphene accurately with a nanorobot



A team of researchers from China and the U.S. has been a method to cut graphene accurately with a nanorobot that is based on an atomic force microscope. The work, entitled 'Court graphene controlled by a nanorobot based on an atomic force microscope', was published in 'Scientia Sinica'.

Graphene is a two-dimensional stable structure has attracted worldwide attention in recent years due to its excellent electronic properties, physical and mechanical properties and its wide range of applications. It has been shown experimentally that the electrical properties of graphene are closely related to its size, geometry and structure, therefore, make the graphene having the desired shape, it is essential for practical application.