Expedition 35 Flight Engineers Chris Cassidy (pictured) and Tom Marshburn (out of frame) completed a spacewalk at 2:14 p.m. EDT May 11, 2013 to inspect and replace a pump controller box on the International Space Station’s far port truss (P6) leaking ammonia coolant. The two NASA astronauts began the 5-hour, 30-minute spacewalk at 8:44 a.m. A leak of ammonia coolant from the area near or at the location of a Pump and Flow Control Subassembly was detected on Thursday, May 9, prompting engineers and flight controllers to begin plans to support the spacewalk. The device contains the mechanical systems that drive the cooling functions for the port truss. Image Credit: NASA (More at NASA Picture of The Day)
Expedition 35 Commander Chris Hadfield of the Canadian Space Agency (CSA), left, Russian Flight Engineer Roman Romanenko of the Russian Federal Space Agency (Roscosmos), center, and NASA Flight Engineer Tom Marshburn sit in chairs outside the Soyuz Capsule just minutes after they landed in a remote area outside the town of Dzhezkazgan, Kazakhstan, on Tuesday, May 14, 2013. Hadfield, Romanenko and Marshburn are returning from five months onboard the International Space Station where they served as members of the Expedition 34 and 35 crews. Photo Credit: (NASA/Carla Cioffi) (More at NASA Picture of The Day)
The Soyuz TMA-07M spacecraft is seen as it lands with Expedition 35 Commander Chris Hadfield of the Canadian Space Agency (CSA), NASA Flight Engineer Tom Marshburn and Russian Flight Engineer Roman Romanenko of the Russian Federal Space Agency (Roscosmos) in a remote area near the town of Zhezkazgan, Kazakhstan, on Tuesday, May 14, 2013. Hadfield, Marshburn and Romanenko returned from five months onboard the International Space Station where they served as members of the Expedition 34 and 35 crews. Image Credit: NASA/Carla Cioffi (More at NASA Picture of The Day)
This composite image of a galaxy illustrates how the intense gravity of a supermassive black hole can be tapped to generate immense power. The image contains X-ray data from NASA's Chandra X-ray Observatory (blue), optical light obtained with the Hubble Space Telescope (gold) and radio waves from the NSF’s Very Large Array (pink). This multi-wavelength view shows 4C+29.30, a galaxy located some 850 million light years from Earth. The radio emission comes from two jets of particles that are speeding at millions of miles per hour away from a supermassive black hole at the center of the galaxy. The estimated mass of the black hole is about 100 million times the mass of our Sun. The ends of the jets show larger areas of radio emission located outside the galaxy. The X-ray data show a different aspect of this galaxy, tracing the location of hot gas. The bright X-rays in the center of the image mark a pool of million-degree gas around the black hole. Some of this material may eventually be consumed by the black hole, and the magnetized, whirlpool of gas near the black hole could in turn, trigger more output to the radio jet. Most of the low-energy X-rays from the vicinity of the black hole are absorbed by dust and gas, probably in the shape of a giant doughnut around the black hole. This doughnut, or torus blocks all the optical light produced near the black hole, so astronomers refer to this type of source as a hidden or buried black hole. The optical light seen in the image is from the stars in the galaxy. Image Credit: NASA (More at NASA Picture of The Day)
Expedition 35 Flight Engineer Chris Cassidy, who currently is living and working aboard the International Space Station, is captured in a close-up image in the Quest Airlock prior to a spacewalk. On Thursday, May 16, 2013, at noon EDT, NASA is hosting a Google+ Hangout connecting the Space Station and "Star Trek Into Darkness" crews. Cassidy; astronauts Michael Fincke and Kjell Lindgren at NASA's Johnson Space Center in Houston; director J.J. Abrams, screenwriter and producer Damon Lindelof; and stars of the film, Chris Pine, Alice Eve and John Cho will take part in the event. The participants will ask questions of each other and take questions from the Intrepid Sea, Air & Space Museum in New York City (home of the space shuttle Enterprise), the Smithsonian’s National Air and Space Museum in Washington, and social media followers. Image Credit: NASA (More at NASA Picture of The Day)
NASA's Mars rover Curiosity used its front left Hazard-Avoidance Camera for this image of the rover's arm over the drilling target "Cumberland" during the 275th Martian day, or sol, of the rover's work on Mars (May 15, 2013). The rover team plans to use Curiosity's drill to collect a powdered sample from the interior of the rock for analysis by laboratory instruments inside the rover. This is the mission's second rock-drilling target. The rover drove from its position beside the first drilling target, "John Klein," to its position beside Cumberland with drives of 121 inches (308 centimeters) on Sol 273 (May 13) and 26.6 inches (67.5 centimeters) on Sol 275. Curiosity's total odometry on Mars is now 2,385 feet (727 meters). Image credit: NASA/JPL-Caltech (More at NASA Picture of The Day)
The Twin Rectangular Jet model, installed on the Nozzle Acoustic Test Rig in the Aeroacoustic Propulsion Laboratory at NASA's Glenn Research Center, is being tested to determine the acoustic impact of engine configurations on low sonic boom aircraft for the High Speed Project of the Fundamental Aeronautics Program. The High Speed Project is a multi-center effort to develop and test the technologies of a new generation of aircraft that can fly at supersonic speeds. Glenn's research involves predicting the airport noise of these novel aircraft by examining innovative airframes and propulsion integration that are different from the conventional tube-and-wing aircraft observed at commercial airports. Inside the aeroacoustic dome, this generic, low-fidelity aircraft engine exhaust model features twin rectangular nozzles. Researchers are investigating the impact of having the propulsive exhaust come from the slot nozzles atop the aircraft. Testing the proposed components of these high- speed aircraft will help manufacturers meet the noise standards required around the nation's airports. Image Credit: NASA/Bridget R. Caswell (More at NASA Picture of The Day)
This image of the storm system that generated the F-4 tornado in Moore, Oklahoma was taken by NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard one of the Earth Observing System (EOS) satellites. The image was captured on May 20, 2013, at 19:40 UTC (2:40 p.m. CDT) as the tornado began its deadly swath. Image Credit: NASA/Goddard/Jeff Schmaltz/MODIS Land Rapid Response Team(More at NASA Picture of The Day)
In Antarctica in January, 2013 – the summer at the South Pole – scientists released 20 balloons, each eight stories tall, into the air to help answer an enduring space weather question: when the giant radiation belts surrounding Earth lose material, where do the extra particles actually go? This NASA-funded mission is called BARREL, for Balloon Array for Radiation belt Relativistic Electron Losses. Each balloon launched by the BARREL team floated for anywhere from three to 40 days, measuring X-rays produced by fast-moving electrons high up in the atmosphere.BARREL works hand in hand with another NASA mission called the Van Allen Probes, which travels directly through the Van Allen radiation belts. The belts wax and wane over time in response to incoming energy and material from the sun, sometimes intensifying the radiation through which satellites orbiting Earth must travel. Scientists need to understand this process better, and even provide forecasts of such space weather, in order to protect our spacecraft.› Read MoreImage Credit: NASA(More at NASA Picture of The Day)
Astronauts aboard the International Space Station (ISS) photographed this striking view of Pavlof Volcano on May 18, 2013. The oblique perspective from the ISS reveals the three dimensional structure of the ash plume, which is often obscured by the top-down view of most remote sensing satellites. Situated in the Aleutian Arc about 625 miles (1,000 kilometers) southwest of Anchorage, Pavlof began erupting on May 13, 2013. The volcano jetted lava into the air and spewed an ash cloud 20,000 feet (6,000 meters) high. When photograph ISS036-E-2105 (top) was taken, the space station was about 475 miles south-southeast of the volcano (49.1° North latitude, 157.4° West longitude). The volcanic plume extended southeastward over the North Pacific Ocean. Image Credit: NASA (More at NASA Picture of The Day)
This image shows a cutting-edge solar-electric propulsion thruster in development at NASA's Jet Propulsion Laboratory, Pasadena, Calif., that uses xenon ions for propulsion. An earlier version of this solar-electric propulsion engine has been flying on NASA's Dawn mission to the asteroid belt. This engine is being considered as part of the Asteroid Initiative, a proposal to robotically capture a small near-Earth asteroid and redirect it safely to a stable orbit in the Earth-moon system where astronauts can visit and explore it. This image was taken through a porthole in a vacuum chamber at JPL where the ion engine is being tested. Image credit: NASA/JPL-Caltech(More at NASA Picture of The Day)
The Soyuz TMA-09M spacecraft is rolled out by train to the Baikonur Cosmodrome launch pad, Sunday, May 26, 2013, in Kazakhstan. Expedition 36/37 Soyuz Commander Fyodor Yurchikhin of the Russian Federal Space Agency, Flight Engineer Luca Parmitano of the European Space Agency, and Flight Engineer Karen Nyberg of NASA, are set to launch to the International Space Station Tuesday night Eastern U.S. time, Wednesday in Kazakh time. Yurchikhin, Nyberg, and, Parmitano, will remain aboard the station until mid-November. Credit: NASA/Bill Ingalls(More at NASA Picture of The Day)
An aircraft-shaped wind vane is seen in the foreground of this image of the Soyuz rocket at the Baikonur Cosmodrome launch pad in Kazakhstan.Soyuz Commander Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos), Flight Engineer Karen Nyberg of NASA and Flight Engineer Luca Parmitano of the European Space Agency are scheduled to launch aboard the Soyuz to the International Space Station (ISS) on Tuesday, May 28, 2013 at 4:31 p.m. EDT (2:31 a.m., May 29, Kazakh time). Yurchikhin, Nyberg, and Parmitano will remain aboard the station until mid-November 2013.Photo Credit: NASA/Bill Ingalls(More at NASA Picture of The Day)
A Soyuz rocket with Expedition 36/37 Soyuz Commander Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos) and Flight Engineers Luca Parmitano of the European Space Agency and Karen Nyberg of NASA, onboard, launches from the Baikonur Cosmodrome in Kazakhstan to the International Space Station. Yurchikhin, Nyberg and Parmitano will remain aboard the station until mid-November, 2013.Photo credit: NASA/Bill Ingalls(More at NASA Picture of The Day)
This artist's rendering shows what capturing an asteroid could look like. NASA's FY2014 budget proposal includes a plan to robotically capture a small near-Earth asteroid and redirect it safely to a stable orbit in the Earth-moon system where astronauts can visit and explore it. Performing these elements for the proposed asteroid initiative integrates the best of NASA's science, technology and human exploration capabilities and draws on the innovation of America's brightest scientists and engineers. It uses current and developing capabilities to find both large asteroids that pose a hazard to Earth and small asteroids that could be candidates for the initiative, accelerates our technology development activities in high-powered solar electric propulsion and takes advantage of our hard work on the Space Launch System rocket and Orion spacecraft, helping to keep NASA on target to reach the President's goal of sending humans to Mars in the 2030s. Image Credit: NASA/Advanced Concepts Lab (More at NASA Picture of The Day)
The ISS SERVIR Environmental Research and Visualization System or ISERV - a camera aboard the International Space Station - captures an image of her hometown. ISERV was designed and built at NASA's Marshall Space Flight Center in Huntsville, Ala.ISERV provides useful images for disaster monitoring and assessment and environmental decision making. A system like ISERV could aid in delivering imagery and data to help officials in developing nations monitor impacts of disasters such as floods, landslides and forest fires. Its images also could help decision makers address other environmental issues.Image Credit: NASA/SERVIR/ISERV(More at NASA Picture of The Day)
The sun is captured in a "starburst" mode over Earth's horizon by one of the Expedition 36 crew members aboard the International Space Station, as the orbital outpost was above a point in southwestern Minnesota on May 21, 2013.Image Credit: NASA(More at NASA Picture of The Day)
This image from the NASA/ESA Hubble Space Telescope captures an ongoing cosmic collision between two galaxies — a spiral galaxy is in the process of colliding with a lenticular galaxy. The image also reveals further evidence of the collision. There is a bright stream of stars coming out from the merging galaxies, extending out towards the top of the image. The bright spot in the middle of the plume, known as ESO 576-69, is what makes this image unique. This spot is believed to be the nucleus of the former spiral galaxy, which was ejected from the system during the collision and is now being shredded by tidal forces to produce the visible stellar stream. Image Credit: European Space Agency/NASA Hubble(More at NASA Picture of The Day)
On May 20, 2013, central Oklahoma was devastated by a EF-5 tornado, the most severe on the enhanced Fujita scale. The Newcastle-Moore tornado killed at least 24 people, injured 377, and affected nearly 33,000 in some way. Early estimates suggest that more then $2 billion in damage was done to public and private property; at least 13,000 structures were destroyed or damaged. It was the deadliest tornado in the United States since an EF-5 event killed 158 people in Joplin, Missouri, in 2011. On June 2, 2013, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite observed the scar of that tornado on the Oklahoma landscape. In this false-color image, infrared, red, and green wavelengths of light have been combined to better distinguish between water, vegetation, bare ground, and human developments. Water is blue. Buildings and paved surfaces are blue-gray. Vegetation is red. The tornado track appears as a beige stripe running west to east across this image; the color reveals the lack of vegetation in the wake of the storm. According to the National Weather Service, the tornado was on the ground for 39 minutes, ripping across 17 miles (27 kilometers) from 4.4 miles west of Newcastle to 4.8 miles east of Moore, Oklahoma. At its peak, the funnel cloud was 1.3 miles (2.1 kilometers) wide and wind speeds reached 210 miles (340 km) per hour. Image Credit: NASA Earth Observatory (More at NASA Picture of The Day)
