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jueves, 26 de mayo de 2016

NASA : NASA's OSIRIS-REx Spacecraft Prepared for Mission to an Asteroid.- Nave espacial Osiris-Rex de la NASA preparado para la misión a un asteroide

http://www.nasa.gov/image-feature/nasas-osiris-rex-spacecraft-prepared-for-mission-to-an-asteroid

OSIRIS-REx spacecraft in clean room surrounded by technicians
NASA's OSIRIS-REx spacecraft is revealed after its protective cover is removed inside the Payload Hazardous Servicing Facility at Kennedy Space Center in Florida, on May 21, 2016. The spacecraft traveled from Lockheed Martin's facility near Denver, Colorado to Kennedy to begin processing for its upcoming launch, targeted for Sept. 8 aboard a United Launch Alliance Atlas V rocket. After launch, OSIRIS-REx - which stands for Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer - has an approximately two-year cruise to reach the asteroid Bennu in 2018.
 
Upon arrival, OSIRIS-REx will spend a year flying in close proximity to Bennu, its five instruments imaging the asteroid, documenting its lumpy shape, and surveying its chemical and physical properties. In 2020, OSIRIS-REx will collect a pristine sample of at least two ounces of the asteroid's surface material that will be returned back to Earth in 2023 for analysis. Bennu is part of the debris left over from the formation of the solar system. It is pristine enough to hold clues to solar system's origin and the source of water and organic molecules found on Earth.
Image Credit: NASA/Dimitri Gerondidakis
Last Updated: May 25, 2016
Editor: Sarah Loff
NASA
Guillermo Gonzalo Sánchez Achutegui
ayabaca@gmail.com
ayabaca@hotmail.com
ayabaca@yahoo.com
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NASA : Fjord and Glacier in East-Central Greenland.- Fiordo y glaciar en el centro-oriental de Groenlandia

http://www.nasa.gov/image-feature/fjord-and-glacier-in-east-central-greenland

Overhead view of glacier with mountain in distance
On May 19, 2016, NASA's IceBridge, an airborne survey of polar ice, crossed Greenland to fly central glacier flowlines in the east-central region of the country. This photo captures the fjord of  Violin Glacier with Nord Glacier at the upper left corner.
This year marks IceBridge's eighth spring campaign of science flights over Arctic sea and land. During the seven previous years of operations in the Arctic, IceBridge has gathered large volumes of data on changes in the elevation of the ice sheet and its internal structure. Measurements from IceBridge have revealed a 460-mile-long (740 kilometers) canyon hiding under a mile of ice and mapped the extent of a vast liquid water aquifer beneath the snow in southern Greenland. IceBridge’s readings of the thickness of sea ice and its snow cover have helped scientists improve forecasts for the summer melt season and have enhanced the understanding of variations in ice thickness distribution from year to year.
Image Credit: NASA/Maria José Viñas
Last Updated: May 24, 2016
Editor: Sarah Loff
NASA
Guillermo Gonzalo Sánchez Achutegui
ayabaca@gmail.com
ayabaca@hotmail.com
ayabaca@yahoo.com
Inscríbete en el Foro del blog y participa : A Vuelo De Un Quinde - El Foro!

martes, 24 de mayo de 2016

NASA : Up and Over.- Arriba y por encima

Hola mis amigos: A VUELO DE UN QUINDE EL BLOG., Cassini en órbita alrededor de plano de los anillos de Saturno - alrededor del ecuador del planeta - la mayor parte de 2015. Esto permitió una temporada de sobrevuelos de las lunas heladas del planeta, pero no permitió puntos de vista en ángulo de los anillos y los polos del planeta, como éste. Sin embargo, a principios de 2016, la nave espacial comenzó a aumentar su inclinación orbital, subiendo más sobre los polos en preparación para las órbitas finales espectaculares de la misión en 2017.
Esta vista se dirige hacia el lado iluminado de los anillos desde unos 16 grados por encima del plano de los anillos. La imagen fue tomada con la cámara de gran angular de la Cassini el 26 de febrero el año 2016 usando un filtro espectral que preferentemente se admite longitudes de onda de luz casi infrarroja centrada en 752 nanómetros................."
More information.............

Saturn
      
Cassini orbited in Saturn's ring plane -- around the planet's equator -- for most of 2015. This enabled a season of flybys of the planet's icy moons, but did not allow for angled views of the rings and the planet's poles, like this one. But in early 2016, the spacecraft began to increase its orbital inclination, climbing higher over the poles in preparation for the mission's final spectacular orbits in 2017.

This view looks toward the sunlit side of the rings from about 16 degrees above the ring plane. The image was taken with the Cassini spacecraft wide-angle camera on Feb. 26 2016 using a spectral filter which preferentially admits wavelengths of near-infrared light centered at 752 nanometers.

The view was obtained at a distance of approximately 1.7 million miles (2.8 million kilometers) from Saturn. Image scale is 103 miles (165 kilometers) per pixel.

The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colorado.

For more information about the Cassini-Huygens mission visit 
 and
The Cassini imaging team homepage is at 

Credit: NASA/JPL-Caltech/Space Science Institute

Last Updated: May 23, 2016
Editor: Tony Greicius
NASA
Guillermo Gonzalo Sánchez Achutegui