sábado, 6 de febrero de 2016

PUEDO ASEGURARTE ► Floating Hills on Pluto's Sputnik Planum

Floating Hills on Pluto's Sputnik Planum

Pluto’s Mysterious, Floating Hills

Pluto’s hemisphere
Hills of water ice on Pluto ‘float’ in a sea of frozen nitrogen and move over time like icebergs in Earth’s Arctic Ocean—another example of Pluto’s fascinating geological activity.
Credits: NASA/JHUAPL/SwRI
The nitrogen ice glaciers on Pluto appear to carry an intriguing cargo: numerous, isolated hills that may be fragments of water ice from Pluto’s surrounding uplands. These hills individually measure one to several miles or kilometers across, according to images and data from NASA’s New Horizons mission.
The hills, which are in the vast ice plain informally named Sputnik Planum within Pluto’s ‘heart,’ are likely miniature versions of the larger, jumbled mountains on Sputnik Planum’s western border. They are yet another example of Pluto’s fascinating and abundant geological activity.
Because water ice is less dense than nitrogen-dominated ice, scientists believe these water ice hills are floating in a sea of frozen nitrogen and move over time like icebergs in Earth’s Arctic Ocean. The hills are likely fragments of the rugged uplands that have broken away and are being carried by the nitrogen glaciers into Sputnik Planum. ‘Chains’ of the drifting hills are formed along the flow paths of the glaciers. When the hills enter the cellular terrain of central Sputnik Planum, they become subject to the convective motions of the nitrogen ice, and are pushed to the edges of the cells, where the hills cluster in groups reaching up to 12 miles (20 kilometers) across.
At the northern end of the image, the feature informally named Challenger Colles – honoring the crew of the lost space shuttle Challenger – appears to be an especially large accumulation of these hills, measuring 37 by 22 miles (60 by 35 kilometers). This feature is located near the boundary with the uplands, away from the cellular terrain, and may represent a location where hills have been ‘beached’ due to the nitrogen ice being especially shallow.
The image above shows the inset in context next to a larger view that covers most of Pluto’s encounter hemisphere. The inset was obtained by New Horizons’ Multispectral Visible Imaging Camera (MVIC) instrument. North is up; illumination is from the top-left of the image. The image resolution is about 1050 feet (320 meters) per pixel. The image measures a little over 300 miles (almost 500 kilometers) long and about 210 miles (340 kilometers) wide. It was obtained at a range of approximately 9,950 miles (16,000 kilometers) from Pluto, about 12 minutes before New Horizons’ closest approach to Pluto on July 14, 2015. 
Last Updated: Feb. 4, 2016
Editor: Tricia Talbert


Pluto Terrain

The nitrogen ice glaciers on Pluto appear to carry an intriguing cargo: numerous, isolated hills that may be fragments of water ice from Pluto’s surrounding uplands. These hills individually measure one to several miles or kilometers across, according to images and data from NASA’s New Horizons mission.
The hills, which are in the vast ice plain informally named Sputnik Planum within Pluto’s ‘heart,’ are likely miniature versions of the larger, jumbled mountains on Sputnik Planum’s western border. They are yet another example of Pluto’s fascinating and abundant geological activity.
Image Credit: NASA/JHUAPL/SwRI
Last Updated: Feb. 4, 2016
Editor: Sarah Loff
Pluto Terrain
el dispensador dice:
puedo asegurarte,
que hay vida más allá de la vida...
que muchos te aguardan,
mientras otros se asoman y te miran...
esta no es la verdadera vida,
apenas un sueño mientras la siesta perdura extendida,
no te adelantes a la senda concedida,
la gracia es un rollo que merece ser vivida,
ya que luego la eternidad aparece en la esquina,
sellando la frente... 
del humilde que espera en su silla...
respeta tu tiempo,
honrando el motivo por el cual respiras, 
ya que cuando te vas...
pesarán tus palabras,
acciones medidas...
si hubo segundas intenciones,
trampas y heridas,
todo estará en tu frente,
como si ése fuese tu día...

puedo asegurarte,
que nada es como parece...
mira con el alma,
y descubrirás que el horizonte,
emerge como ángulo,
de la gracia trazada,
y de la otra esgrimida.
FEBRERO 06, 2016.-


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