The largest antenna ever tested in ESA’s Hertz radio frequency test chamber is this 5-m diameter transponder antenna. It will operate down on the ground to help calibrate the Biomass mission, which will chart all the forests on Earth. ESA antenna engineer Luis Rolo, who is overseeing the test campaign, explained: “This is a particularly challenging ...
New research documents for the first time link the pollution of public water supplies caused by shale gas development, commonly known as fracking, to its negative impact on infant health. These findings call for closer environmental regulation of the industry, as levels of chemicals found in drinking water often fall below regulatory thresholds. Elaine Hill, ...
An enormous comet — approximately 80 miles across, more than twice the width of Rhode Island — is heading our way at 22,000 miles per hour from the edge of the solar system. Fortunately, it will never get closer than 1 billion miles from the Sun, which is slightly farther from Earth than Saturn; that will be in 2031. ...
Philadelphia is the poorest large city in the United States. It’s also unusual in having a high proportion of homeowners compared to renters. Taken together, this means that poorer homeowners may lack the funds to maintain and make needed repairs to their homes, leaving them at risk of a variety of related health issues, including ...
Are we all imagining the same thing when we listen to music, or are our experiences hopelessly subjective? In other words, is music a truly universal language? To investigate those questions, an international team of researchers (including a classical pianist, a rock drummer, and a concert bassist) asked hundreds of people what stories they imagined when ...
Physicists know about the huge chasm between quantum physics and the theory of gravity. However, in recent decades, theoretical physics has provided some plausible conjecture to bridge this gap and to describe the behavior of complex quantum many-body systems, for example, black holes and wormholes in the universe. Now, a theory group at Freie Universität ...
A first-of-its-kind study led by University of Minnesota Twin Cities researchers reveals why liquid droplets have the ability to erode hard surfaces. The discovery could help engineers design better, more erosion-resistant materials. Using a newly developed technique, the researchers were able to measure hidden quantities such as the shear stress and pressure created by the ...
Xinjiang, in northwest China, lies at an important junction between east and west Eurasia and has played a historically important role in the exchange of goods and technologies between these two regions along the Silk Road. It is a complex mix of cultures and populations. However, the interflow and blending of these diverse populations in ...
Less known than Attila’s Huns, the Avars were their more successful successors. They ruled much of Central and Eastern Europe for almost 250 years. We know that they came from Central Asia in the sixth century CE, but ancient authors and modern historians have debated their provenance. Now, a multidisciplinary research team of geneticists, archaeologists, ...
Mysterious giant stone jars that may have been used for burial rituals have been unearthed across four new sites in Assam, India. The discovery comes from a major collaboration involving researchers at The Australian National University (ANU). The 65 newly discovered giant stone jars vary in shape and decoration, with some tall and cylindrical, and others ...
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