La ballena avistada en San Sebastián muere en la playa de La Concha; Apadrinar un leopardo de Amur;
La Fiesta de los Patios de Córdoba, patrimonio inmaterial de la humanidad; El jardinero que fundó la Malva-rosa; La historia detrás de una aguamarina sin igual en el mundo; En fotos: "Más que humano"; Un nuevo ordenador que descubre el infinito; La tecnología del futuro en una tienda; Satélites de la NASA revelan la historia violenta de la Luna; Marte, cada vez más cerca; El culpable del “evento Carlomagno”, una llamarada solar extrema; Herschel y Keck realizan un censo del Universo invisible; El sofisticado realismo de la pintura rupestre; El ADN sitúa el origen del éxodo gitano en India hace 1.500 años; Marcapasos cerebral, un nuevo enfoque contra Alzheimer; i Una 'partida' antes de entrar al quirófano.
Plant Stress Indicates Drought
Farmers across America rely on early drought warning systems to manage their crops. Americans everywhere rely on those farmers to provide food. A new drought tracking system called ESI helps by monitoring the evaporation of water from land surfaces.
Why Are We Seeing So Many Sungrazing Comets?
Before 1979, there were less than a dozen known sungrazing comets. As of December 2012, we know of 2,500. Why did this number increase? With solar observatories like SOHO, STEREO, and SDO, we have not only better means of viewing the sun, but also the comets that approach it. SOHO allows us to see smaller, fainter comets closer to the sun than we have ever been able to see before. Even though many of these comets do not survive their journey past the sun, they survive long enough to be observed, and be added to our record of sungrazing comets.
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