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miércoles, 7 de enero de 2015

NASA : NASA’s Kepler Marks 1,000th Exoplanet Discovery, Uncovers More Small Worlds in Habitable Zones.- EL TELESCOPIO ESPACIAL KEPLER, MARCA SU MIL DESCUBRIMIENTO DE EXO PLANETAS EN LA ZONA DE HABITABILIDAD GALÁCTICA...

Hola amigos: A VUELO DE UN QUINDE EL BLOG., acabamos de recibir información muy caliente de la Agencia Espacial NASA, haciéndonos conocer que el : NASA's Kepler Space Telescope, ya llegó a mil los descubrimientos de exo planetas ubicados en la Zona de Habitabilidad Galáctica, es decir donde haya la posibilidad de encontrar un planeta análogo a La Tierra y que tenga alguna forma de vida.
NASA, nos dice ..:
 
"Salón de la Fama  Kepler de la NASA: De los más de 1.000 planetas verificados encontrados por el telescopio espacial Kepler de la NASA, ocho tienen menos del doble de tamaño de la Tierra y en la zona habitable de sus estrellas. Los ocho orbitan estrellas más frías y pequeñas que nuestro sol. Continúa la búsqueda de mundos habitables zona tamaño de la Tierra alrededor de estrellas similares al Sol.....
NASA , agrega....."¿Cuántas estrellas como nuestro sol albergan planetas como la Tierra? El telescopio espacial Kepler de la NASA de un seguimiento continuo de más de 150.000 estrellas más allá de nuestro sistema solar, y hasta la fecha ha ofrecido los científicos un surtido de más de 4.000 planetas candidatos para un estudio más - el número 1.000 de los cuales fueron verificados recientemente....."
NASA, prosigue: "Utilizando los datos de Kepler, los científicos llegaron a este hito milenario Después de validar que los ocho candidatos más manchados por el telescopio buscador de planetas son, de hecho, los planetas. El equipo de Kepler también ha añadido otros 554 candidatos al rollo de potenciales planetas, seis de los cuales son tamaño de la Tierra cerca de la órbita y en la zona habitable de estrellas similares a nuestro sol......."
NASA, incide en sus dos últimos descubrimientos: "Dos de los planetas recién validados, Kepler-438b y Kepler-442b, están a menos de 1,5 veces el diámetro de la Tierra. Kepler-438b, 475 años-luz de distancia, es un 12 por ciento más grande que la Tierra y orbita a su estrella una vez cada 35,2 días. Kepler-442b, 1.100 años luz de distancia, es un 33 por ciento más grande que la Tierra y orbita a su estrella una vez cada 112 días......"
NASA Kepler's Hall of Fame
NASA Kepler's Hall of Fame: Of the more than 1,000 verified planets found by NASA's Kepler Space Telescope, eight are less than twice Earth-size and in their stars' habitable zone. All eight orbit stars cooler and smaller than our sun. The search continues for Earth-size habitable zone worlds around sun-like stars.
How many stars like our sun host planets like our Earth? NASA’s Kepler Space Telescope continuously monitored more than 150,000 stars beyond our solar system, and to date has offered scientists an assortment of more than 4,000 candidate planets for further study -- the 1,000th of which was recently verified.
 
Using Kepler data, scientists reached this millenary milestone after validating that eight more candidates spotted by the planet-hunting telescope are, in fact, planets. The Kepler team also has added another 554 candidates to the roll of potential planets, six of which are near-Earth-size and orbit in the habitable zone of stars similar to our sun.
 
Three of the newly-validated planets are located in their distant suns’ habitable zone, the range of distances from the host star where liquid water might exist on the surface of an orbiting planet. Of the three, two are likely made of rock, like Earth.
"Each result from the planet-hunting Kepler mission's treasure trove of data takes us another step closer to answering the question of whether we are alone in the Universe," said John Grunsfeld, associate administrator of NASA’s Science Mission Directorate at the agency’s headquarters in Washington. “The Kepler team and its science community continue to produce impressive results with the data from this venerable explorer."
To determine whether a planet is made of rock, water or gas, scientists must know its size and mass. When its mass can’t be directly determined, scientists can infer what the planet is made of based on its size.
Two of the newly validated planets, Kepler-438b and Kepler-442b, are less than 1.5 times the diameter of Earth. Kepler-438b, 475 light-years away, is 12 percent bigger than Earth and orbits its star once every 35.2 days. Kepler-442b, 1,100 light-years away, is 33 percent bigger than Earth and orbits its star once every 112 days.
Both Kepler-438b and Kepler-442b orbit stars smaller and cooler than our sun, making the habitable zone closer to their parent star, in the direction of the constellation Lyra. The research paper reporting this finding has been accepted for publication in The Astrophysical Journal.
"With each new discovery of these small, possibly rocky worlds, our confidence strengthens in the determination of the true frequency of planets like Earth," said co-author Doug Caldwell, SETI Institute Kepler scientist at NASA's Ames Research Center at Moffett Field, California. "The day is on the horizon when we’ll know how common temperate, rocky planets like Earth are.”
 
With the detection of 554 more planet candidates from Kepler observations conducted May 2009 to April 2013, the Kepler team has raised the candidate count to 4,175. Eight of these new candidates are between one to two times the size of Earth, and orbit in their sun's habitable zone. Of these eight, six orbit stars that are similar to our sun in size and temperature. All candidates require follow-up observations and analysis to verify they are actual planets.
“Kepler collected data for four years -- long enough that we can now tease out the Earth-size candidates in one Earth-year orbits”, said Fergal Mullally, SETI Institute Kepler scientist at Ames who led the analysis of a new candidate catalog. “We’re closer than we’ve ever been to finding Earth twins around other sun-like stars. These are the planets we’re looking for”.
These findings also have been submitted for publication in The Astrophysical Journal Supplement.
Work is underway to translate these recent discoveries into estimates of how often rocky planets appear in the habitable zones of stars like our sun, a key step toward NASA's goal of understanding our place in the universe.
Scientists also are working on the next catalog release of Kepler’s four-year data set. The analysis will include the final month of data collected by the mission and also will be conducted using sophisticated software that is more sensitive to the tiny telltale signatures of small Earth-size planets than software used in the past.
Ames is responsible for Kepler's mission operations, ground system development and science data analysis. NASA's Jet Propulsion Laboratory in Pasadena, California, managed Kepler mission development. Ball Aerospace & Technologies Corp. in Boulder, Colorado, developed the Kepler flight system and supports mission operations with the Laboratory for Atmospheric and Space Physics at the University of Colorado in Boulder. The Space Telescope Science Institute in Baltimore archives, hosts and distributes Kepler science data. Kepler is NASA's 10th Discovery Mission and was funded by the agency's Science Mission Directorate in Washington.
 
For more information about the Kepler mission, visit:

NASA
Guillermo Gonzalo Sánchez Achutegui
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