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: 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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