Sigli and Shambe craters in perspective (by europeanspaceagency) This computer-generated perspective view was created using data obtained from the High-Resolution Stereo Camera (HRSC) on ESA’s Mars Express. Centred at around 18°S and 329°E, this image has a ground resolution of about 20 m per pixel. Sigli and Shambe dominate this image, which highlights the deep fracturing within the crater walls. The shape of the craters leads scientists to believe they were formed from the same impactor, which fragmented into two pieces just before hitting Mars. Credits: ESA/DLR/FU Berlin (G. Neukum)
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Sigli and Shambe craters in perspective (by europeanspaceagency)

This computer-generated perspective view was created using data obtained from the High-Resolution Stereo Camera (HRSC) on ESA’s Mars Express. Centred at around 18°S and 329°E, this image has a ground resolution of about 20 m per pixel. Sigli and Shambe dominate this image, which highlights the deep fracturing within the crater walls. The shape of the craters leads scientists to believe they were formed from the same impactor, which fragmented into two pieces just before hitting Mars.

Credits: ESA/DLR/FU Berlin (G. Neukum)

Fuente: Flickr / europeanspaceagency

This was the view out the International Space Station’s cupola on Jan. 1, 2013, around 09:37 UTC, looking nearly straight down the gullet of Italy’s Mt. Vesuvius. Perhaps you’ve heard of it? Just a little more than 1,900 years ago, it blew its top in the most famous volcanic eruption in recorded history. About 16,000 people lost their lives that day due to pyroclastic flow—searing hot ash blasting outward from the stratovolcano’s maw. The volcano has erupted many times since then, including in the 20th century. Got that? It’s still active. Now take another look at that photo, and let the volcano’s surroundings settle in to your mind. It sits just a few kilometers from Naples, and more than half a million people live in the volcano’s red zone—where destruction from a big eruption would be swift and brutal. That’s why volcanologists consider it the world’s most dangerous volcano. Given all we’ve learned about volcanoes in the past few decades, I hope scientists would be able to give people a few days’ warning about an eruption. Science, after all, saves lives. (via Bad Astronomy)
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This was the view out the International Space Station’s cupola on Jan. 1, 2013, around 09:37 UTC, looking nearly straight down the gullet of Italy’s Mt. Vesuvius. Perhaps you’ve heard of it? Just a little more than 1,900 years ago, it blew its top in the most famous volcanic eruption in recorded history. About 16,000 people lost their lives that day due to pyroclastic flow—searing hot ash blasting outward from the stratovolcano’s maw.

The volcano has erupted many times since then, including in the 20th century. Got that? It’s still active. Now take another look at that photo, and let the volcano’s surroundings settle in to your mind. It sits just a few kilometers from Naples, and more than half a million people live in the volcano’s red zone—where destruction from a big eruption would be swift and brutal.

That’s why volcanologists consider it the world’s most dangerous volcano. Given all we’ve learned about volcanoes in the past few decades, I hope scientists would be able to give people a few days’ warning about an eruption. Science, after all, saves lives. (via Bad Astronomy)

Fuente: Slate

Asteroid 2012 DA 14 (by Daniel López)

Seguimiento del asteroide 2012 DA 14 desde las 21:00 a las 22:46 UT el 15-02-2013 desde el Observatorio del Teide. Las fuertes rachas de viento de 55km/h hacen que la imagen vibre.

Fuente: vimeo.com

A miniature version of the Nile River, seen on Saturn’s moon Titan by the international Cassini mission. The river valley stretches more than 400 km from its ‘headwaters’ to a large sea, and likely contains hydrocarbons. The image was acquired on 26 September 2012, on Cassini’s 87th close flyby of Titan. The river valley crosses Titan’s north polar region and runs into Kraken Mare, one of the three great seas in the high northern latitudes of the moon. Credit: NASA/JPL–Caltech/ASI. (via ESA Space Science)
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A miniature version of the Nile River, seen on Saturn’s moon Titan by the international Cassini mission. The river valley stretches more than 400 km from its ‘headwaters’ to a large sea, and likely contains hydrocarbons. The image was acquired on 26 September 2012, on Cassini’s 87th close flyby of Titan. The river valley crosses Titan’s north polar region and runs into Kraken Mare, one of the three great seas in the high northern latitudes of the moon. Credit: NASA/JPL–Caltech/ASI. (via ESA Space Science)

Fuente: esa.int

Example of a view of the Habitable Exoplanets Catalog (HEC) for Solar System planets. Three complementary habitability metrics are shown. The HZD is a measure of how far is the planet from the center of the habitable zone, zero being exactly in the center (using a Venus maximum greenhouse habitable zone definition). The ESI compares the similarity of various planetary properties with Earth, a value of one being identical to Earth. The SPH is a measure of how good is the surface to support life, with a value of one being optimum. The SPH of Earth is 0.33 because all its land areas are not equally good for life due to deserts (maximum SPH is 0.51 without water limitation on land). Habitable planets are those with ESI values over 0.8 or SPH over zero. Credit: PHL and NASA Solar System Imagery. (via Planetary Habitability Laboratory)
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Example of a view of the Habitable Exoplanets Catalog (HEC) for Solar System planets. Three complementary habitability metrics are shown. The HZD is a measure of how far is the planet from the center of the habitable zone, zero being exactly in the center (using a Venus maximum greenhouse habitable zone definition). The ESI compares the similarity of various planetary properties with Earth, a value of one being identical to Earth. The SPH is a measure of how good is the surface to support life, with a value of one being optimum. The SPH of Earth is 0.33 because all its land areas are not equally good for life due to deserts (maximum SPH is 0.51 without water limitation on land). Habitable planets are those with ESI values over 0.8 or SPH over zero. Credit: PHL and NASA Solar System Imagery. (via Planetary Habitability Laboratory)

Fuente: sites.google.com

Oppy has been having a fine old time, taking photographs of one of the most gnarly, messy, lumpy, pug-ugly rocks ever seen by either rover. “Munro” is… well, it’s just a mass of jumbled stone, with bits of stuff sticking out here, what look like solidified splashes of other stuff there. It looks like a previously normal-looking rock had a really bad transporter beam accident and rematerialised on the surface of Mars turned half inside out, screaming in pain. I mean… look at it… Of course, one man’s ugliness is another man’s geological beauty, and I’m sure the MER scientists are beaming from ear to ear as they ponder Munro’s mysteries. What IS that blue-grey stuff that looks like it’s splashed all over it? Is Munro a mass of different rocks, all mixed up together? We’ll need more images to tell us that, I think. (via The Road To Endeavour)
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Oppy has been having a fine old time, taking photographs of one of the most gnarly, messy, lumpy, pug-ugly rocks ever seen by either rover. “Munro” is… well, it’s just a mass of jumbled stone, with bits of stuff sticking out here, what look like solidified splashes of other stuff there. It looks like a previously normal-looking rock had a really bad transporter beam accident and rematerialised on the surface of Mars turned half inside out, screaming in pain. I mean… look at it… Of course, one man’s ugliness is another man’s geological beauty, and I’m sure the MER scientists are beaming from ear to ear as they ponder Munro’s mysteries. What IS that blue-grey stuff that looks like it’s splashed all over it? Is Munro a mass of different rocks, all mixed up together? We’ll need more images to tell us that, I think. (via The Road To Endeavour)

Fuente: roadtoendeavour.wordpress.com

Magnificent CME Erupts on the Sun with Earth to Scale (por NASA Goddard Photo and Video) On August 31, 2012 a long filament of solar material that had been hovering in the sun’s atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The coronal mass ejection, or CME, traveled at over 900 miles per second. The CME did not travel directly toward Earth, but did connect with Earth’s magnetic environment, or magnetosphere, causing aurora to appear on the night of Monday, September 3. The image above includes an image of Earth to show the size of the CME compared to the size of Earth. Credit: NASA/GSFC/SDO
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Magnificent CME Erupts on the Sun with Earth to Scale (por NASA Goddard Photo and Video)

On August 31, 2012 a long filament of solar material that had been hovering in the sun’s atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The coronal mass ejection, or CME, traveled at over 900 miles per second. The CME did not travel directly toward Earth, but did connect with Earth’s magnetic environment, or magnetosphere, causing aurora to appear on the night of Monday, September 3.

The image above includes an image of Earth to show the size of the CME compared to the size of Earth.

Credit: NASA/GSFC/SDO

Fuente: Flickr / gsfc

This image is from a test series used to characterize the 100-millimeter Mast Camera on NASA’s Curiosity rover. It was taken on Aug. 23, 2012, and looks south-southwest from the rover’s landing site. The gravelly area around Curiosity’s landing site is visible in the foreground. Farther away, about a third of the way up from the bottom of the image, the terrain falls off into a depression (a swale). Beyond the swale, in the middle of the image, is the boulder-strewn, red-brown rim of a moderately-sized impact crater. Farther off in the distance, there are dark dunes and then the layered rock at the base of Mount Sharp. Some haze obscures the view, but the top ridge, depicted in this image, is 10 miles (16.2 kilometers) away. (via Mars Science Laboratory: Images)
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This image is from a test series used to characterize the 100-millimeter Mast Camera on NASA’s Curiosity rover. It was taken on Aug. 23, 2012, and looks south-southwest from the rover’s landing site.

The gravelly area around Curiosity’s landing site is visible in the foreground. Farther away, about a third of the way up from the bottom of the image, the terrain falls off into a depression (a swale). Beyond the swale, in the middle of the image, is the boulder-strewn, red-brown rim of a moderately-sized impact crater. Farther off in the distance, there are dark dunes and then the layered rock at the base of Mount Sharp. Some haze obscures the view, but the top ridge, depicted in this image, is 10 miles (16.2 kilometers) away. (via Mars Science Laboratory: Images)

Fuente: mars.jpl.nasa.gov

View from the ISS at Night (by Knate Myers)

Every frame in this video is a photograph taken from the International Space Station. All credit goes to the crews on board the ISS. I removed noise and edited some shots in photoshop. Compiled and arranged in Sony Vegas.

Music by John Murphy - Sunshine (Adagio In D Minor) itunes.apple.com/us/album/sunshine-music-from-motion/id297702863

Image Courtesy of the Image Science & Analysis Laboratory, NASA Johnson Space Center, The Gateway to Astronaut Photography of Earth eol.jsc.nasa.gov

Fuente: vimeo.com

Dune Patterns (by Lunar and Planetary Institute) Data from NASA’s Cassini spacecraft show that the sizes and patterns of dunes on Saturn’s moon Titan vary as a function of altitude and latitude. The dunes in areas that are more elevated or are higher in latitude, such as in the Fensal region pictured at bottom left, tend to be thinner and more widely separated, with gaps that have a thinner covering of sand. Dunes in the Belet region, pictured at top left, are at a lower altitude and latitude. The dunes in Belet are wider, with thicker blankets of sand between them. The Kalahari dunes in South Africa and Namibia, located in a region with limited sediment available and pictured at bottom right, show effects similar to the Fensal dunes. The Belet dunes on Titan resemble Earth’s Oman dunes in Yemen and Saudi Arabia, where there is abundant sediment available. The Oman dunes are shown at top right.
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Dune Patterns (by Lunar and Planetary Institute)

Data from NASA’s Cassini spacecraft show that the sizes and patterns of dunes on Saturn’s moon Titan vary as a function of altitude and latitude. The dunes in areas that are more elevated or are higher in latitude, such as in the Fensal region pictured at bottom left, tend to be thinner and more widely separated, with gaps that have a thinner covering of sand. Dunes in the Belet region, pictured at top left, are at a lower altitude and latitude. The dunes in Belet are wider, with thicker blankets of sand between them. The Kalahari dunes in South Africa and Namibia, located in a region with limited sediment available and pictured at bottom right, show effects similar to the Fensal dunes. The Belet dunes on Titan resemble Earth’s Oman dunes in Yemen and Saudi Arabia, where there is abundant sediment available. The Oman dunes are shown at top right.

Fuente: Flickr / lunarandplanetaryinstitute

NOAA Satellite Captures Venus Transit (by NOAAVisualizations)

The NOAA GOES satellites are most commonly associated with the non-stop coverage of severe weather over the western hemisphere. However, one of the sensors on-board the GOES spacecraft, the Solar X-Ray Imager (SXI), points towards the Sun, providing constant monitoring of space weather, especially solar flares. On June 5th, the GOES-15 SXI captured the transit of Venus across the Sun. It can be seen in this animation as a small dark spot that crosses from left to right. The next transit of Venus visible by Earth will occur in 2117.

Fuente: youtube.com

A Forest of Channels on the South Polar Layered Deposits (by Lunar and Planetary Institute) The sublimation of seasonal carbon dioxide in the Martian polar regions seems to erode connected channels on the underlying surface, as escaping carbon dioxide gas scours the surface beneath the carbon dioxide ice. Such features are fairly common to the south polar region. However, the channel clusters here are unusually even in their spacing. The carbon dioxide gas-driven erosion will exploit pre-existing weakness in the underlying surface, so it’s possible that these features are following joints or fractures that exist in the layered deposits. The regularity of these features may suggest something about the thickness of ground ice deep below the surface. ASU-IPF-3256
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A Forest of Channels on the South Polar Layered Deposits (by Lunar and Planetary Institute)

The sublimation of seasonal carbon dioxide in the Martian polar regions seems to erode connected channels on the underlying surface, as escaping carbon dioxide gas scours the surface beneath the carbon dioxide ice. Such features are fairly common to the south polar region. However, the channel clusters here are unusually even in their spacing. The carbon dioxide gas-driven erosion will exploit pre-existing weakness in the underlying surface, so it’s possible that these features are following joints or fractures that exist in the layered deposits. The regularity of these features may suggest something about the thickness of ground ice deep below the surface. ASU-IPF-3256

Fuente: Flickr / lunarandplanetaryinstitute

Animation of a rotating globe of Jupiter’s moon Io, with a geologic map superimposed over a global color mosaic. The 47-second animation begins as a global color mosaic image of the moon, then at 24 seconds, it displays the geologic map overlain on the mosaic. (via USGS)

Fuente: youtube.com

This shows the largest of the newly detected graben found in highlands of the lunar farside. The broadest graben is about 500 meters (1,640 feet) wide and topography derived from Lunar Reconnaissance Orbiter Camera (LROC) Narrow Angle Camera (NAC) stereo images indicates they are almost 20 meters (almost 66 feet) deep. Credit: NASA/Goddard/Arizona State University/Smithsonian Institution (via NASA)
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This shows the largest of the newly detected graben found in highlands of the lunar farside. The broadest graben is about 500 meters (1,640 feet) wide and topography derived from Lunar Reconnaissance Orbiter Camera (LROC) Narrow Angle Camera (NAC) stereo images indicates they are almost 20 meters (almost 66 feet) deep. Credit: NASA/Goddard/Arizona State University/Smithsonian Institution (via NASA)

Fuente: www1.nasa.gov

This handout photo provided by Darryl Pitt of the Macovich Collection shows an external view of a Martian meteorite recovered in December 2011 near Foumzgit, Morocco following a meteorite shower believed to have occurred in July 2011. Scientists are confirming a recent and rare invasion from Mars _ meteorite chunks that fell from the red planet over Morocco last summer. Meteorites from Mars are more than 1 million times rarer than gold. And this is only the fifth time experts have chemically confirmed fresh Martian rocks fell to Earth. The last time was in 1962. Scientists believe this meteorite fell last July because there were sightings of it. Credit: Darryl Pitt, Macovich Collection (vía The Associated Press)
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This handout photo provided by Darryl Pitt of the Macovich Collection shows an external view of a Martian meteorite recovered in December 2011 near Foumzgit, Morocco following a meteorite shower believed to have occurred in July 2011. Scientists are confirming a recent and rare invasion from Mars _ meteorite chunks that fell from the red planet over Morocco last summer. Meteorites from Mars are more than 1 million times rarer than gold. And this is only the fifth time experts have chemically confirmed fresh Martian rocks fell to Earth. The last time was in 1962. Scientists believe this meteorite fell last July because there were sightings of it. Credit: Darryl Pitt, Macovich Collection (vía The Associated Press)

Fuente: google.com

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