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Around the Solar System

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Robotic probes launched by NASA, the European Space Agency (ESA), and others are gathering information all across the solar system. We currently have spacecraft in orbit around the Sun, Mercury, Venus, Earth, Mars, and Saturn -- and one new rover recently landed on Mars. Several others are on their way to smaller bodies, and a few are heading out of the solar system entirely. Although the Space Shuttle no longer flies, astronauts are still at work aboard the International Space Station, performing experiments and sending back amazing photos. With all these eyes in the sky, I'd like to take another opportunity to put together a recent photo album of our solar system -- a set of family portraits, of sorts -- as seen by our astronauts and mechanical emissaries. This time, we have some great shots from the new Mars rover Curiosity, a parting shot of the asteroid Vesta, some glimpses of Saturn and its moons, and lovely images of our home, planet Earth. [33 photos]

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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. (NASA/GSFC/SDO)
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. (NASA/GSFC/SDO)
NASA's Solar Dynamics Observatory (SDO) spacecraft took this image showing the Sun being partially blocked by Earth on September 6, 2012. Twice a year, for three weeks near the equinox, NASA's Solar Dynamics Observatory (SDO) moves into its eclipse season -- a time when Earth blocks its view of the sun for a period of time each day. The Solar Dynamics Observatory (SDO) is a NASA mission which will observe the Sun for over five years. (Reuters/NASA/SDO/Handout) #
MESSENGER, NASA's spacecraft orbiting Mercury, captured this June 03, 2012 scene near the recently named crater Magritte. Shadowing helps define a striking "Mickey Mouse" resemblance, created by the accumulation of craters over Mercury's long geologic history. (NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington) #
Earth's planetary neighbor Venus passes across the face of the sun on June 5, 2012, seen here from the International Space Station. Expedition 31 crew members aboard the orbital outpost had cameras set up in several locations to record the rare event. (NASA) #
Seen by NASA's Lunar Reconnaissance Orbiter, a fresh crater on the Moon, splashing ejecta across the edge of a fracture in Komarov crater, on May 18, 2012. (NASA/GSFC/Arizona State University) #
Above the Earth, NASA astronaut Sunita Williams, Expedition 32 flight engineer, appears to touch the bright sun during the mission's third session of extravehicular activity (EVA) on September 5, 2012. During the six-hour, 28-minute spacewalk, Williams and Japan Aerospace Exploration Agency astronaut Aki Hoshide (visible in the reflections of Williams' helmet visor), flight engineer, completed the installation of a Main Bus Switching Unit (MBSU) that was hampered by a possible misalignment and damaged threads where a bolt must be placed. They also installed a camera on the International Space Station's robotic arm, Canadarm2. (NASA) #
Polar mesopheric clouds at the peak of their visibility, seen from the International Space Station, on June 13, 2012. (Reuters/ISS/NASA) #
Astronaut Andre Kuipers watches a bubble in a drop of water as he enjoys his last days of weightlessness aboard the International Space Station, on June 24, 2012. (AP Photo/NASA, Andre Kuipers) #
The view taken from a mounted camera on the International Space Station, from approximately 240 miles above Earth. A total of 47 images were used to create the composite. (Reuters/NASA/Handout) #
Hurricane Isaac acquired early on August 28, 2012, by the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi-NPP satellite, also capturing the cities near the Gulf Coast of the United States. The clouds of Isaac were lit by moonlight. (NASA Earth Observatory) #
The Soyuz TMA-03M spacecraft floats down to Earth with Expedition 31 Commander Oleg Kononenko of Russia and Flight Engineers Don Pettit of NASA and Andre Kuipers of the European Space Agency on board in their Soyuz TMA-03M capsule in a remote area of the Kazakh Steppe on July 1, 2012 near the town of Zhezkazgan, Kazakhstan. Pettit, Kononenko and Kuipers returned from more than six months onboard the International Space Station, where they served as members of the Expedition 30 and 31 crews. (Bill Ingalls/NASA via Getty Images) #
A model of the 70-metric-ton configuration of the SLS rocket, designed to carry the Orion spacecraft, is tested in the Trisonic Wind Tunnel at NASA's Marshall Space Flight Center, on August 23, 2012. This view uses special cameras and a deflection of light (Schlieren flow visualization) directed through the windows in the tunnel to show the shadows of airflow as it changes angles at high speeds, helping visualize the various intense pressures of atmosphere on the model. (NASA/MSFC) #
NASA's project Morpheus lander is seen bursting into flames during a test at Kennedy Space Center, Florida, on August 9, 2012. During a free-flight test of the Project Morpheus vehicle at the Shuttle Landing Facility, the vehicle lifted off the ground and then experienced a hardware component failure, which prevented it from maintaining stable flight. No one was injured and the resulting fire was extinguished by Kennedy fire personnel. Project Morpheus is a vertical test bed designed by NASA, demonstrating new green propellant propulsion systems and autonomous landing and hazard detection technology. (Reuters/NASA/Handout) #
The "Mighty Eagle" soars above the tree line on August 16, 2012. The vehicle was "open loop" -- navigating autonomously without the command of the onboard camera and flying on a preprogrammed flight profile. This NASA robotic prototype lander sailed to an altitude of 100 feet during another successful free flight August 28 at NASA's Marshall Space Flight Center in Huntsville, Alabama. The test is part of a new series of free flights testing the robotic prototype lander's autonomous rendezvous and capture capabilities. (NASA/MSFC/Fred Deaton) #
SpaceX's Dragon spacecraft atop rocket Falcon 9 lifts off from Pad 40 of the Cape Canaveral Air Force Station in Titusville, Florida. The launch made SpaceX the first commercial company to send a spacecraft to the International Space Station. (Roberto Gonzalez/Getty Images) #
Russian cosmonaut Oleg Novitskiy takes part in a training session, for extra vehicular activity, at the Star City space center outside Moscow, on August 10, 2012. Novitskiy, cosmonaut Evgeny Tarelkin and NASA astronaut Kevin Ford are preparing for a mission to the International Space Station in October 2012. (Reuters/Sergei Remezov) #
The setting sun highlights cloud patterns -- as well as the Pacific Ocean surface itself -- in this photograph taken by an astronaut aboard the International Space Station, on May 15, 2012. The ISS was located over the Andes Mountains of central Chile at the time. The camera view is looking back towards the Pacific Ocean as the Sun was setting in the west. (NASA) #
On Mars, NASA's Rover Opportunity catches its own late-afternoon shadow in this dramatically lit view eastward across Endeavour Crater. The rover used the panoramic camera (Pancam) between about 4:30 and 5:00 p.m. local Mars time to record images taken through different filters and combined into this mosaic view. Most of the component images were recorded during the 2,888th Martian day, or sol, of Opportunity's work on Mars (March 9, 2012). At that time, Opportunity was spending low-solar-energy weeks of the Martian winter at the Greeley Haven outcrop on the Cape York segment of Endeavour's western rim. Opportunity has been studying the western rim of Endeavour Crater since arriving there in August 2011. This crater spans 14 miles (22 kilometers) in diameter, or about the same area as the city of Seattle. (NASA/JPL-Caltech/Cornell/Arizona State Univ.) #
The landing site of NASA's newest Mars rover, seen on August 17, 2012. The descent stage crash site (left), backshell and parachute (bottom), and Curiosity Rover (right). This image was acquired by the HiRISE instrument aboard the Mars Reconnaissance Orbiter, looking more directly down (9 degree roll angle) than the prior images so the pixel scale is improved to approximately 0.27 m/pixel. (NASA/JPL/University of Arizona) #
This image is from a test series used to characterize the 100-millimeter Mast Camera on NASA's Curiosity rover. It was taken on August 23, 2012, and looks south-southwest from the rover's landing site. The 100-millimeter Mastcam has three times better resolution than Curiosity's 34-millimeter Mastcam, though it has a narrower field of view. 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. Scientists enhanced the color in this version to show the Martian scene under the lighting conditions we have on Earth, which helps in analyzing the terrain. (NASA/JPL-Caltech/MSSS) #
This view of the lower front and underbelly areas of NASA's Mars rover Curiosity combines nine images taken by the rover's Mars Hand Lens Imager (MAHLI) during the 34th Martian day, or sol, of Curiosity's work on Mars, on September 9, 2012. Curiosity's front Hazard-Avoidance cameras appear as a set of four blue eyes at the top center of the portrait. Fine-grain Martian dust can be seen adhering to the wheels, which are about 16 inches (40 centimeters) wide and 20 inches (50 centimeters) in diameter. The bottom of the rover is about 26 inches (66 centimeters) above the ground. On the horizon at the right is a portion of Mount Sharp, with dark dunes at its base. The camera is in the turret of tools at the end of Curiosity's robotic arm. (NASA/JPL-Caltech/Malin Space Science Systems) #
On Sol 32, September 7, 2012, the Curiosity rover used a camera located on its arm to obtain this self portrait. The image of the top of Curiosity's Remote Sensing Mast, showing the Mastcam and Chemcam cameras, was acquired by the Mars Hand Lens Imager (MAHLI). The angle of the frame reflects the position of the MAHLI camera on the arm when the image was taken. (NASA/JPL-Caltech/Malin Space Science Systems) #
The Chemistry and Camera (ChemCam) instrument on NASA's Mars rover Curiosity used its laser to examine side-by-side points in a target patch of soil, leaving the marks apparent in this before-and-after comparison. The two images were taken by ChemCam's Remote Micro-Imager from a distance of about 11.5 feet (3.5 meters). The diameter of the circular field of view is about 3.1 inches (7.9 centimeters). Researchers used ChemCam to study this soil target, named "Beechey," during the 19th Martian day, or sol, of Curiosity's mission, August 25, 2012. (NASA/JPL-Caltech/LANL/CNES/IRAP/LPGN/CNRS) #
On September 8, 2012, Curiosity's Mars Hand Lens Imager (MAHLI) took this detailed image of Martian soil. The patch of ground shown is about 34 inches (86 centimeters) across. The size of the largest pebble, near the top of the image, is about 3 inches (8 centimeters). Notice that the ground immediately around that pebble has less dust visible (more gravel exposed) than in other parts of the image. The presence of the pebble may have affected the wind in a way that preferentially removes dust from the surface around it. (NASA/JPL-Caltech/Malin Space Science Systems) #
The penny in this image is part of a camera calibration target on NASA's Mars rover Curiosity. The MAHLI camera on the rover took this and other images of the MAHLI calibration target on September 9, 2012. The penny is a nod to geologists' tradition of placing a coin or other object of known scale as a size reference in close-up photographs of rocks, and it gives the public a familiar object for perceiving size easily when it will be viewed by MAHLI on Mars. The specific coin, provided by MAHLI's principal investigator, Ken Edgett, is a 1909 "VDB" penny. That was the first year Lincoln pennies were minted and the centennial of Abraham Lincoln's birth. The VDB refers to the initials of the coin's designer, Victor D. Brenner, which are on the reverse side. The calibration target for the Mars Hand Lens Imager (MAHLI) instrument also includes a "Joe the Martian" character, color references, a metric bar graphic, and a stair-step pattern for depth calibration. (NASA/JPL-Caltech/Malin Space Science Systems) #
The left eye of the Mast Camera (Mastcam) on NASA's Mars rover Curiosity took this image of the MAHLI camera on the rover's arm, on Mars, on September 5, 2012. The image shows that MAHLI has a thin film or coating of Martian dust on it. This dust accumulated during Curiosity's final descent to the Martian surface, as the Mars Science Laboratory spacecraft's descent stage (or sky crane) engines were disrupting the surface nearby. The reddish circle near the center of the Mastcam Sol 30 image is the window of MAHLI's dust cover, with a diameter a little less than a soda can's diameter. The mechanism at the right in this image is Curiosity's dust removal tool, a motorized wire brush. (NASA/JPL-Caltech/MSSS) #
Tracks mark the surface of Mars, after NASA's rover Curiosity drove about 70 feet (about 21 meters) on the mission's 21st Martian day, and then took images with its Navigation Camera that were combined into this scene, which includes the fresh tracks. (NASA/JPL-Caltech) #
This undated image taken by the NASA's Dawn spacecraft shows the south pole of the giant asteroid Vesta. After spending a year examining Vesta, Dawn was poised to depart and head to another asteroid Ceres, where it will arrive in 2015. (AP Photo/NASA) #
A brightly reflective Enceladus appears before the rings of Saturn, while the planet's larger moon Titan looms in the distance. Enceladus (313 miles, or 504 kilometers across) is in the center of the image. Titan (3,200 miles, or 5,150 kilometers across) glows faintly in the background beyond the rings, in this image acquired by NASA's Cassini spacecraft on March 12, 2012. (NASA/JPL-Caltech/Space Science Institute) #
A true color image of Titan's colorful south polar vortex captured by NASA's Cassini spacecraft before a distant flyby of Saturn's moon Titan on June 27, 2012, shows a south polar vortex, or a mass of swirling gas, around the pole in the atmosphere of the moon. The south pole of Titan which is 3,200 miles (5,150 km) across is near the center of the view. The formation of the vortex at Titan's south pole may be related to the coming southern winter and the start of what will be a south polar hood. These new, more detailed images are only possible because of Cassini's newly inclined orbits, which are the next phase of Cassini Solstice Mission. (Reuters/NASA/JPL-Caltech/Space Science Institute/Handout) #
Saturn's moon Dione, seen before Saturn and part of the rings, on May 02, 2012, from approximately 50,762 miles (81,694 kilometers) away. (NASA/JPL/Space Science Institute) #
A giant of a moon appears before a giant of a planet undergoing seasonal changes in this natural color view of Titan and Saturn from NASA's Cassini spacecraft, on May 6, 2012. As the seasons have changed in the Saturnian system, and spring has come to the north and autumn to the south, the azure blue in the northern Saturnian hemisphere that greeted Cassini upon its arrival in 2004 is now fading. The southern hemisphere, in its approach to winter, is taking on a bluish hue. This change is likely due to the reduced intensity of ultraviolet light and the haze it produces in the hemisphere approaching winter, and the increasing intensity of ultraviolet light and haze production in the hemisphere approaching summer. (NASA/JPL-Caltech/SSI) #
This image, taken by the Hubble Space Telescope, shows the five known moons orbiting the distant, icy dwarf planet Pluto. The green circle marks the newly discovered moon, designated S/2012 (134340) 1, or P5, as photographed by Hubble's Wide Field Camera 3 on 7 July 2012. The moon is estimated to be 10 to 25 kilometers across. It is in a 95,000 kilometer diameter circular orbit around Pluto that is assumed to be aligned in the same plane as the other satellites in the system. The darker stripe in the center of the image is because the picture is constructed from a long exposure designed to capture the comparatively faint satellites of Nix, Hydra, P4 and S/2012 (134340) 1, and a shorter exposure to capture Pluto and Charon, which are much brighter. NASA's New Horizons probe, which will rendezvous with Pluto in July of 2015, was launched in 2006 -- back then, Pluto only had three known moons. (Mr. Showalter/AFP/Getty Images) #

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