Monday, September 27

Desierto de Atacama

alma, astrónomos, Chile, Desierto de Atacama, discos protoplanetarios, Espacio, estrellas jóvenes, Noticias, planetas

Organic molecules detected in 5 protoplanetary disks | Digital Trends Spanish

Using the ALMA telescope, located in the Atacama desert (northern Chile), a group of astronomers has managed to map 18 organic and inorganic molecules in protoplanetary discs of five young stars. These would be IM Lup, GM Aur, AS 209, HD 163296 and MWC 480, and the new maps show that the chemical substances of these discs are not located uniformly in each of them, but that each disc is like a " different soup of planetary ingredients ”. These results suggest that planet formation occurs in diverse chemical environments and that, as they form, each planet can be exposed to very different molecules depending on their location on the disk. Planets form in the gas and dust disks, also known as protoplanetary disks, that surround young stars. The chemical composition of these disks can influ...
atacama, Chile, Desierto de Atacama, dragón volador, Jurásico, Noticias, Tendencias, universidad de chile

Remains of a flying dragon identified in Chile | Digital Trends Spanish

Thanks to the study of the fossil remains found in the Atacama desert (northern Chile), in 2009, a strange “flying dragon” from the Jurassic could be identified, something that had never happened in the southern hemisphere. It is a type of pterosaur belonging to the subfamily Ramphorhynchinae, which was found in the city of Calama and which inhabited Gondwana about 160 million years ago. The study was headed by Jhonatan Alarcón, researcher at the Paleontological Network of the University of Chile, and the remains that corresponded to “a left humerus, a possible dorsal vertebra and two fragments of a phalanx of the wing, all preserved in three dimensions and probably belonging to a single individual ”. University of Chile.According to the scientist, the preserved pieces of the specimen a...
agricultura, Chile, Desierto, Desierto de Atacama, Fósiles, hallazgo, norte de Chile, Noticias, restos humanos, Tendencias, violencia

What do the remains found in the Chilean desert reveal? | Digital Trends Spanish

Located in the north of Chile, the Atacama Desert constitutes a good setting for the study of the fossil remains of the ancient inhabitants, this due to the lack of humidity in the area since it is the driest desert in the world. A new study of human remains from tombs between 3,000 and 1,400 years old reveals the violent struggle that could have occurred between the inhabitants of the area when agriculture began. According to research to be published in the Journal of Anthropological Archeology, the inhabitants of the desert attacked each other with maces, knives and hunting weapons, probably fighting for the scarcity of water and the availability of fertile land. The study found dozens of individuals with hair, meat and organs still intact, due to the aridity of the desert. Vivien Sta...
Chile, Desierto de Atacama, Espacio, Marte, Noticias

Driest desert in the world key to finding life on Mars | Digital Trends Spanish

Microbes discovered in shallow, clay-rich soil layers in the Atacama desert in northern Chile and considered the driest place on Earth, could be key in the search for life on Mars. A study of the Cornell University and the Center for Astrobiology of Spain suggests that similar deposits below the Martian surface could contain microorganisms, which could easily be found in future missions to the red planet. The scientists presented a planetary basis for identifying microbial markers in the shallow excavations that rovers make in Martian clay, as described in a paper published in the journal Nature Scientific Reports. In the dry environment at Atacama, the scientists found layers of moist clay, about a foot (about 30 centimeters) below the surface, that are inhabited by microorganisms...