El comportamiento del Sol...
La NASA ha filmado durante 5 años el comportamiento del
sol. Nadie estaba preparado para ver esto.
La NASA ha filmado durante los últimos 5 años el comportamiento del sol,
haciendo capturas fotográficas de alta resolución, con fotogramas a cada
segundo. Y ahora han creado y editado un video con todo el material para que el
mundo pueda verlo.
El video es increíblemente potente. A veces es difícil entender que esa
bola de fuego enorme es sumamente necesaria para que haya vida en nuestro
planeta.
El siguiente video te dejará sin palabras.
© Publicado
el miércoles 11/02/2015 por http://noticias24hrs.com
February 11, 2015 marks
five years in space for NASA's Solar Dynamics Observatory, which provides
incredibly detailed images of the whole sun 24 hours a day. Capturing an image
more than once per second, SDO has provided an unprecedentedly clear picture of
how massive explosions on the sun grow and erupt ever since its launch on Feb.
11, 2010. The imagery is also captivating, allowing one to watch the constant
ballet of solar material through the sun's atmosphere, the corona.
In honor of SDO's fifth anniversary, NASA has released a video showcasing
highlights from the last five years of sun watching. Watch the movie to see
giant clouds of solar material hurled out into space, the dance of giant loops
hovering in the corona, and huge sunspots growing and shrinking on the sun's
surface.
The imagery is an example of the kind of data that SDO provides to scientists.
By watching the sun in different wavelengths – and therefore different
temperatures – scientists can watch how material courses through the corona,
which holds clues to what causes eruptions on the sun, what heats the sun's
atmosphere up to 1,000 times hotter than its surface, and why the sun's
magnetic fields are constantly on the move.
Five years into its mission, SDO continues to send back tantalizing imagery to
incite scientists' curiosity. For example, in late 2014, SDO captured imagery
of the largest sun spots seen since 1995 as well as a torrent of intense solar
flares. Solar flares are bursts of light, energy and X-rays. They can occur by
themselves or can be accompanied by what's called a coronal mass ejection, or
CME, in which a giant cloud of solar material erupts off the sun, achieves
escape velocity and heads off into space. In this case, the sun produced only
flares and no CMEs, which, while not unheard of, is somewhat unusual for flares
of that size. Scientists are looking at that data now to see if they can
determine what circumstances might have led to flares eruptions alone.
Goddard built, operates and manages the SDO spacecraft for NASA's Science
Mission Directorate in Washington, D.C. SDO is the first mission of NASA's
Living with a Star Program. The program's goal is to develop the scientific
understanding necessary to address those aspects of the sun-Earth system that
directly affect our lives and society.
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11742
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© Publicado el 11 febrero de 2015 por:
