it was approximately 1,000,000 km from Earth and has since been rapidly moving away from our planet. GTC observed it at more than 50,000,000 km and, thanks to the data obtained, it has been predicted that on February 26, 2082 the asteroid will pass between the Earth and the Moon, at a distance of approximately 165,000 km. Javier Licandro, coordinator of the IAC Research Area, assures that “this IAC-ESA collaboration places the GTC at the forefront of the Planetary Defense program.” “The monitoring of these asteroids is of fundamental importance for the Planetary Defense program,” says Julia de León, Principal Investigator of the IAC’s Solar System group. And he adds: “The early determination of a possible impact would allow
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taking the necessary measures to avoid it or Kiribati Email Lists minimize its effects.” These observations and space missions such as Hera (a mission that ESA is planning and in which IAC researchers are participating), are essential to protect our planet from the impact of an asteroid. For example, 2019 DS1 is between 20 and 40m in diameter and, if it hits the Earth, it could generate a catastrophe similar to the one generated by the object that hit Tunguska in 1908.When Benigno Elvira was a child, one of his hobbies was fishing. At that time, their rod was made with fish such as barbel, bogas, vermilion or horns, all indigenous. “These species are increasingly rare. Now the children fish sunfish and catfish, both American, or alburnos, originating from central
Europe ”, points out this professor from the Department of Zoology and Physical Anthropology of the Complutense University of Madrid (UCM). Species from other countries and continents are called exotic. The rainbow trout Oncorhynchus mykiss , the carp Cyprinus carpio or the largemouth bass Micropterus salmoides , now common in Spain, are included in the list of the 100 most harmful invasive alien species in the world , published by the International Union for Conservation of Nature. Many of them were officially introduced at the initiative of fisheries managers but, since 1968, many have been released by individuals, which is currently illegal. “We have a very interesting and old river fish fauna, but very altered”, Elvira acknowledges.