Martian Sand Dunes Caught in Motion | Wired Science Martian Sand Dunes Caught in Motion | Wired Science inShare0 A rippled dune front in Herschel Crater moved about 1 meter between March 3, 2007 and Dec. 1, 2010. A dune in the northern polar region of Mars shows significant changes between two images taken on June 25, 2008 and May 21, 2010. Another view of the rippled dune front in Herschel Crater.
The largest storm seen on Saturn in more than 21 years has now been encircling the planet for a record-breaking 200 days.First appearing as a tiny blemish on Dec. 5, 2010, the storm is still going strong today, surpassing the ringed giant's previous longest tempest, which lasted 150 days back in 1903. NASA’s Cassini spacecraft, in orbit around Saturn, has given astronomers a front-seat view of this enormous maelstrom and provided valuable data.From its humble beginnings, the storm has grown to engulf the entire area between Saturn’s 30th and 51st north latitudes. From north to south, the tempest stretches about 9,000 miles — greater than diameter of the Earth — and covers two billion square miles, or eight times the surface area of our planet.Above:Northern ShowerThe storm marches through the planet's atmosphere in the top right of this false-color mosaic from Cassini. Red and orange colors in this view indicate clouds that are deep in the atmosphere. Colossal Storm Rages Over Saturn’s Surface | Wired Science Colossal Storm Rages Over Saturn’s Surface | Wired Science
The European Space Agency’s Herschel space telescope has captured this gorgeous new view of the famed Eagle Nebula. The Eagle Nebula, located 6,500 light-years away in the constellation Serpens, is visible as a fuzzy red spot to backyard astronomers with a modest telescope. In 1995, NASA’s Hubble space telescope captured a famous image of one region within the Eagle Nebula: a star-forming cluster named NGC6611, known as the “Pillars of Creation.” Light and heat from young stars carved out the iconic pillars, which are each several trillion miles long. Incredible New View of Eagle Nebula's 'Pillars of Creation' | Wired Science Incredible New View of Eagle Nebula's 'Pillars of Creation' | Wired Science
Titan: A Wet World Not Far From Earth | Wired Science Titan: A Wet World Not Far From Earth | Wired Science Astronomers weekly announce the discovery of new exoplanets, some similar in size or temperature to our planet –- but Earth-like worlds are not always far away.Though Saturn's largest moon, Titan, is a small, cold world orbiting on the outskirts of the solar system, it actually boasts many familiar features.“Titan is fascinating because it has some surprising properties so similar to Earth,” said planetary scientist Oded Aharonson from the California Institute of Technology. “It has a liquid which erodes channels, an atmosphere, a hydrologic cycle, and many other parallels.”Chief among Titan’s interesting qualities is that it's the only body other than Earth where liquids are known to flow in large concentrations on the surface. Because average temperatures there are -300 degrees Fahrenheit, these liquids are not water.
There’s something about old photographs. The perfect combination of faded light, outdated coloring, and nostalgia seems to make them more beautiful with age.Perhaps that’s why this collection of images from NASA’s Gemini Program is so great. The Project Gemini Online Digital Archive, released this weekend by NASA and Arizona State University, features high-resolution digital scans from the original Gemini flight films.As NASA’s second human spaceflight program, which had 10 manned flights between 1965 and 1966, Gemini saw such milestones as the first American spacewalk, first week-long spaceflight, and the first docking maneuver with another vehicle in space. The success of these objectives paved the way for the Apollo program, which immediately followed Gemini and landed the first men on the moon.Here, Wired presents some of the highlights from this archive.Above:Lost in ContemplationAstronaut Ed White, the first American to walk in space, looks at the beauty outside his capsule. Amazing Archive of High-Res Photos from NASA’s Gemini Missions | Wired Science Amazing Archive of High-Res Photos from NASA’s Gemini Missions | Wired Science
A Starfish in the Sky In the constellation of Aquila (the Eagle), lies a star nearing the end of its life that is surrounded by a starfish-shaped cloud of gas and dust. A striking image of this object, known as IRAS 19024+0044 has been captured by the NASA/ESA Hubble Space Telescope. Protoplanetary nebulae offer glimpses of how stars similar to the Sun end their lives and how they make the transition to white dwarfs surrounded by planetary nebulae. As it ages, a Sun-like star eventually sheds its outer layers into space, creating a beautiful and often intricately shaped cloud of gas and dust around it. At first, still relatively cool, the star is unable to ionise this gas, which shines only by reflected and scattered stellar light. Only when the temperature of the star increases enough to ionise this protoplanetary nebula does the pattern of gas and dust become a fully fledged planetary nebula. A Starfish in the Sky
Sunset Glow in Orion Sunset Glow in Orion The magnificent reflection nebula NGC 2023 lies nearly 1500 light-years from Earth. It is located within the constellation of Orion (The Hunter), in a prestigious area of the sky close to the well-known Flame and Horsehead Nebulae. The entire structure of NGC 2023 is vast, at four light-years across.
Looking to the Heavens Looking to the Heavens The pearly wisps surrounding the central star IRAS 10082-5647 in this Hubble image certainly draw the eye towards the heavens. The divine-looking cloud is a reflection nebula, made up of gas and dust glowing softly by the reflected light of nearby stars, in this case a young Herbig Ae/Be star. The star, like others of this type, is still a relative youngster, only a few million years old. It has not yet reached the so-called main sequence phase, where it will spend around 80% of its life creating energy by burning hydrogen in its core. Until then the star heats itself by gravitational collapse, as the material in the star falls in on itself, becoming ever denser and creating immense pressure which in turn gives off copious amounts of heat. Stars only spend around 1% of their lives in this pre-main sequence phase.
At the turn of the 19th century, the binary star system Eta Carinae was faint and undistinguished. In the first decades of the century, it became brighter and brighter, until, by April 1843, it was the second brightest star in the sky, outshone only by Sirius (which is almost a thousand times closer to Earth). In the years that followed, it gradually dimmed again and by the 20th century was totally invisible to the naked eye. The star has continued to vary in brightness ever since, and while it is once again visible to the naked eye on a dark night, it has never again come close to its peak of 1843. Preview of a Forthcoming Supernova Preview of a Forthcoming Supernova
Hubble Revisits an Old Friend Hubble Revisits an Old Friend Supernova SN 1987A, one of the brightest stellar explosions since the invention of the telescope more than 400 years ago, is no stranger to the NASA/ESA Hubble Space Telescope. The observatory has been on the frontline of studies into this brilliant dying star since its launch in 1990, three years after the supernova exploded on 23 February 1987. This image of Hubble’s old friend, retreived from the telescope’s data archive, may be the best ever of this object, and reminds us of the many mysteries still surrounding it. Dominating this picture are two glowing loops of stellar material and a very bright ring surrounding the dying star at the centre of the frame. Although Hubble has provided important clues on the nature of these structures, their origin is still largely unknown.
Infinity Imagined: Archive
The formation of galactic superclusters from a thin mist of hydrogen gas in the early universe. This simulation shows the activity of our Cosmos on the largest scales of space and time. The scale of the simulation, 500 kiloparsecs, corresponds to 1.6 million light years, approximately the half the distance between our Milky Way and the Andromeda Galaxy. The time scale is 14 billion years, the same as the current age of the universe. Infinity Imagined
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Starship Asterisk* • View topic - APOD Collection: Sun Pillars
Herschel Science Centre Herschel has recently achieved another major milestone in the currently ongoing performance verification phase. Building on the already demonstrated photometric capabilities of the PACS and SPIRE science instruments employed in the 'sneak preview' and 'first-light' observations, for the first time Herschel has now observed in the 'SPIRE/PACS parallel mode'. One outcome is spectacular views in five different far infrared colours of an area near the galactic plane about 60 degrees away from the direction towards the centre of the Galaxy in the constellation of the Southern Cross, considered a suitable region for demonstration and verification purposes, being representative in having a range in structure sizes and temperatures.
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Geomagnetic Storm Strength Increases › View larger An aurora on March 8, 2012 shimmering over snow-covered mountains in Faskrudsfjordur, Iceland. Image courtesy of Jónína Óskarsdóttir Geomagnetic Storm Strength Increases
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Hubble Heritage Gallery of Images
Email Phil Dubois snapped this photo outside Fort Kent, Maine, near the Canadian border. "The northern lights are not usually visible here," Dubois says. "We usually only see them maybe once a year if we are lucky, and nothing as intense as the show last night."....[ More ] Phil Dubois snapped this photo outside Fort Kent, Maine, near the Canadian border. "The northern lights are not usually visible here," Dubois says. Northern Lights Go South: Geomagnetic Storm Lights U.S. Skies with Auroral Display: Scientific American Slideshows
A Fuller Moon: High-Res Images Fill in Details about Lunar Topography: Scientific American Gallery
Hubble Zooms in on Double Nucleus in Andromeda Galaxy (01/11/2012) - Introduction
Tierra del Fuego
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Yesterday's Tomorrow: A Look at Space Stations That Never Were [Slide Show]: Scientific American Slideshows
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Last View
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Soyuz on the Launch Pad
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Long Way From Home
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Young Stellar Grouping in Cygnus X
Spiral Galaxy
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Western Europe at Night
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Hurricane Irene
Photo Album :: Images by Category: Groups & Clusters of Galaxies
Echo II, a Balloon Satellite
Apollo 17 Extravehicular Activity - 39 Years Ago Today
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Active Galaxy Centaurus A
Expedition 30 Soyuz Rolls to the Pad
A 'Rose' Made of Galaxies
Titan's Kraken Mare
Lunation animation November 2009.gif - Wikipedia, the free encyclopedia
Chandra X-ray Observatory - NASA's flagship X-ray telescope
21 Unbelievable Photographs of Mars
NASA's latest stunning images of sun (photos) | Full Frame
The first science artist to draw accurate pictures of Mars and the Moon
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Image Catalog
Top 24 Deep Space Pictures of 2011
The immensity of Saturn
The Planet Artists: Chesley Bonestell, Lucien Rudaux, and Ludek Pesek
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INSANELY cool picture of Comet Lovejoy
A dying star with the wind in its hair
Stunning view of a bloom from space
IMAGE Spacecraft Pictures Aurora
Northwestern Europe at Night
Amazing Astronomy Illustrations From the 1800s Resurface Online | E.L. Trouvelot Images & Drawings | Space, Sun & Planets
Amazing Astronomy: Victorian-Era Illustrations of the Heavens | Art of E.L Trouvelot | Sky-watching, Sun & Planets