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NASA

Peering through the layers: This collage of images shows an active region on the…

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Peering through the layers: This collage of images shows an active region on the Sun taken at almost the same time in extreme ultraviolet light by NASA’s Solar Dynamics Observatory on July 24, 2014 at about 17:56 UTC. The layers are arranged clockwise from the upper left by temperature of plasma being imaged. This arrangement also correlates with the distance above the Sun’s surface, going from lowest to highest. Different features of the active region appear quite differently in the four images: each one helps to provide scientists with more information about the Sun’s processes.

Image Credit: NASA/Solar Dynamics Observatory
#nasa #sdo #space #sun #sunshine #ultraviolet #uvlight #uv



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NASA

Hubble Serves a Slice of Stars The thin, glowing streak slicing across this ima…

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Hubble Serves a Slice of Stars

The thin, glowing streak slicing across this image cuts a lonely figure, with only a few foreground stars and galaxies in the distant background for company.

However, this is all a case of perspective; lying out of frame is another nearby spiral. Together, these two galaxies make up a pair, moving through space together and keeping one another company.

The subject of this Hubble image is called NGC 3501, with NGC 3507 as its out-of-frame companion. The two galaxies look very different — another example of the importance of perspective. NGC 3501 appears edge-on, giving it an elongated and very narrow appearance. Its partner, however, looks very different indeed, appearing face-on and giving us a fantastic view of its barred swirling arms.

While similar arms may not be visible in this image of NGC 3501, this galaxy is also a spiral — although it is somewhat different from its companion. While NGC 3507 has bars cutting through its center, NGC 3501 does not. Instead, it’s loosely wound spiral arms all originate from its center. The bright gas and stars that make up these arms can be seen here glowing brightly, mottled by the dark dust lanes that trace across the galaxy.

Credit: ESA/Hubble & NASA
#nasa #hubble #hst #space #sprialgalaxy #galaxy #galaxies #universe



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NASA

Space View of Glacial Lakes of Patagonia: One of the Expedition 40 crew members …

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Space View of Glacial Lakes of Patagonia: One of the Expedition 40 crew members aboard the International Space Station on June 1 photographed a series of images of the glacial lakes of Patagonia, a region located at the southern end of South America, shared by Argentina and Chile.

Photo credit: NASA

#nasa #space #spacestation #earth #ice #iss #exp40



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NASA

Caught between the sun and our Solar Dynamics Observatory… the moon. The phen…

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Caught between the sun and our Solar Dynamics Observatory… the moon. The phenomenon, called a lunar transit, was observed on July 26, 2014, from 10:57 a.m. to 11:42 a.m. EDT. This happens approximately twice a year, causing a partial solar eclipse that can only be seen from SDO’s point of view. Images of the eclipse show a crisp lunar horizon, because the moon has no atmosphere that would distort light.
Image Credit: NASA

#space #nasa #sun #sdo #science #moon



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NASA

Geysers on icy Saturn moon! Scientists using mission data from our Cassini space…

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Geysers on icy Saturn moon! Scientists using mission data from our Cassini spacecraft have identified 101 distinct geysers erupting on Saturn’s icy moon Enceladus, suggesting it is possible for liquid water to reach moon’s surface from its underground sea.
This view looks across the geyser basin of Saturn’s moon Enceladus, along fractures spewing water vapor and ice particles into space.
Image Credit: NASA

#saturn #nasa #enceladus #science #moon #space #cassini



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NASA

We selected proposals for two new instruments that will observe changes in globa…

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We selected proposals for two new instruments that will observe changes in global vegetation from the International Space Station. The sensors will give scientists new ways to see how forests and ecosystems are affected by changes in climate or land use change.
This image of the Amazon rainforest is from a 2010 global map of the height of the world’s forests based on multiple satellite datasets.

Image Credit: NASA Earth Observatory

#nasa #space #spacestation #earth #earthrightnow #iss #science



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NASA

First Image of the Moon Taken by a U.S. Spacecraft: Ranger 7 took this image, th…

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First Image of the Moon Taken by a U.S. Spacecraft: Ranger 7 took this image, the first picture of the moon by a U.S. spacecraft, on July 31, 1964 at 13:09 UT (9:09 AM EDT), about 17 minutes before impacting the lunar surface.
The Ranger series of spacecraft were designed solely to take high-quality pictures of the moon and transmit them back to Earth in real time. The images were to be used for scientific study, as well as selecting landing sites for the Apollo moon missions. Ranger 7 was the first of the Ranger series to be entirely successful. It transmitted 4,308 high-quality images over the last 17 minutes of flight, the final image having a resolution of 0.5 meter/pixel. Ranger 7 was launched July 28, 1964 and arrived at the moon on July 31, 1964.

Image Credit: NASA

#space #nasa #moon #otd #onthisday #throwbackthursday #tbt #ranger7 #science



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NASA

Iberian Peninsula at Night One of the International Space Station crew members …

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Iberian Peninsula at Night

One of the International Space Station crew members recorded this early evening photo of the entire Iberian Peninsula (Spain, and Portugal) on July 26, 2014. Part of France can be seen at the top of the image and the Strait of Gibraltar is visible at bottom, with a very small portion of Morocco visible near the lower right corner.

Image Credit: NASA
#nasa #space #iss #exp40 #spain #portugal #spacestation #morocco #france #gibraltar



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NASA

Hubble Eyes Galaxy as it Gets a Cosmic Hair Ruffling From objects as small as N…

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Hubble Eyes Galaxy as it Gets a Cosmic Hair Ruffling

From objects as small as Newton’s apple to those as large as a galaxy, no physical body is free from the stern bonds of gravity, as evidenced in this stunning picture captured by the Wide Field Camera 3 and Advanced Camera for Surveys onboard the NASA/ESA Hubble Space Telescope.

Here we see two spiral galaxies engaged in a cosmic tug-of-war — but in this contest, there will be no winner. The structures of both objects are slowly distorted to resemble new forms, and in some cases, merge together to form new, super galaxies. This particular fate is similar to that of the Milky Way Galaxy, when it will ultimately merge with our closest galactic partner, the Andromeda Galaxy. There is no need to panic however, as this process takes several hundreds of millions of years.

Not all interacting galaxies result in mergers though. The merger is dependent on the mass of each galaxy, as well as the relative velocities of each body. It is quite possible that the event pictured here, romantically named 2MASX J06094582-2140234, will avoid a merger event altogether, and will merely distort the arms of each spiral without colliding — the cosmic equivalent of a hair ruffling!

These galactic interactions also trigger new regions of star formation in the galaxies involved, causing them to be extremely luminous in the infrared part of the spectrum. For this reason, these types of galaxies are referred to as LIRGs, or Luminous Infrared Galaxies. This image was taken as part of as part of a Hubble survey of the central regions of LIRGs in the local Universe, which also used the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) instrument.

Credit: ESA/Hubble & NASA, Acknowledgement: Luca Limatola
#nasa #hubble #universe #galaxy #galaxies #space



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NASA

The Eye of Saturn Like a giant eye for the giant planet, Saturn’s great vortex …

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The Eye of Saturn

Like a giant eye for the giant planet, Saturn’s great vortex at its north pole appears to stare back at Cassini as Cassini stares at it.

Measurements have sized the “eye” at a staggering 1,240 miles (2,000 kilometers) across with cloud speeds as fast as 330 miles per hour (150 meters per second). The image was taken with the Cassini spacecraft narrow-angle camera on April 2, 2014 using a combination of spectral filters which preferentially admit wavelengths of near-infrared light centered at 748 nanometers.

The view was obtained at a distance of approximately 1.4 million miles (2.2 million kilometers) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 43 degrees. Image scale is 8 miles (13 kilometers) per pixel.

Credit: NASA/JPL-Caltech/Space Science Institute
#nasa #cassini #saturn #solarsystem #space #planet



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