NASA Mars-Bound Rover Begins Research in Space

NASA's car-sized Curiosity rover has begun monitoring space radiation during its 8-month trip from Earth to Mars. The research will aid in planning for future human missions to the Red Planet. Curiosity launched on Nov. 26 from Cape Canaveral, Fla., aboard the Mars Science Laboratory. The rover carries an instrument called the Radiation Assessment Detector (RAD) that monitors high-energy atomic and subatomic particles from the sun, distant supernovas and other sources. These particles constitute radiation that could be harmful to any microbes or astronauts in space or on Mars. The rover also will monitor radiation on the surface of Mars after its August 2012 landing.

"RAD is serving as a proxy for an astronaut inside a spacecraft on the way to Mars," said Don Hassler, RAD's principal investigator from the Southwest Research Institute in Boulder, Colo. "The instrument is deep inside the spacecraft, the way an astronaut would be. Understanding the effects of the spacecraft on the radiation field will be valuable in designing craft for astronauts to travel to Mars." Previous monitoring of energetic-particle radiation in space has used instruments at or near the surface of various spacecraft. The RAD instrument is on the rover inside the spacecraft and shielded by other components of Mars Science Laboratory, including the aeroshell that will protect the rover during descent through the upper atmosphere of Mars.

Spacecraft structures, while providing shielding, also can contribute to secondary particles generated when high-energy particles strike the spacecraft. In some circumstances, secondary particles could be more hazardous than primary ones. These first measurements mark the start of the science return from a mission that will use 10 instruments on Curiosity to assess whether Mars' Gale Crater could be or has been favorable for microbial life. "While Curiosity will not look for signs of life on Mars, what it might find could be a game-changer about the origin and evolution of life on Earth and elsewhere in the universe," said Doug McCuistion, director of the Mars Exploration Program at NASA Headquarters in Washington. "One thing is certain: The rover's discoveries will provide critical data that will impact human and robotic planning and research for decades."

As of 9 a.m. PST (noon EST) on Dec. 14, the spacecraft will have traveled 31.9 million miles its 352-million-mile flight to Mars. The first trajectory correction maneuver during the trip is being planned for mid-January. Southwest Research Institute, together with Christian Albrechts University in Kiel, Germany, built RAD with funding from the Human Exploration and Operations Mission Directorate, NASA Headquarters, Washington, and Germany's national aerospace research center, Deutsches Zentrum für Luft- und Raumfahrt. The mission is managed by NASA's Jet Propulsion Laboratory for the agency's Science Mission Directorate in Washington. The mission's rover was designed, developed and assembled at JPL, a division of the California Institute of Technology in Pasadena.

NASA Engages Public With New Custom Internet Radio Station

NASA's mission of discovery and exploration will be showcased in a custom-produced Internet music radio station that is crafted specifically to speak the language of tech-savvy young adults. Third Rock - America's Space Station is set to launch with a New Rock/Indie/Alternative format on Monday, Dec. 12. The station is being developed and operated at no cost to the government through a Space Act Agreement. Third Rock can be reached from NASA's home page, www.nasa.gov, and will soon be available through NASA iPhone and Droid mobile applications.

"NASA constantly is looking for new and innovative ways to engage the public and inspire the next generation of scientists and engineers," said David Weaver, associate administrator for the Office of Communications at NASA Headquarters in Washington. "We have led the way in innovative uses of new media and this is another example of how the agency is taking advantage of these important communication tools."NASA is collaborating with Houston-based RFC Media to launch the station. "Today's 4G audience craves new music and enjoys finding it," said Pat Fant, RFC Media co-founder and chief operating officer. "We've pulled out the best songs and the deepest tracks from a full spectrum of rock artists across many styles and decades. NASA features and news items are embedded throughout the programming alongside greetings by celebrity artists."

Third Rock also will help partner companies fill high-tech job openings in the engineering, science and IT fields. In addition to the NASA Web Portal, the station will be available online in the future at the radio tab of Apple's iTunes and other sites. "No one knows more about discovering new rock than NASA," said Cruze, RFC Media co-founder and president. "Exciting new music is being discovered online through specialty sites like Third Rock-America's Space Station, where listeners will hear about great new artists way before their friends hear of them."

NASA Presents Software of the Year Award

Autonomous Exploration for Gathering Increased Science (AEGIS), novel autonomy software that has been operating on the Mars Exploration Rover Opportunity since December 2009, is NASA's 2011 Software of the Year recipient. The AEGIS software, developed by NASA's Jet Propulsion Laboratory in Pasadena, Calif., autonomously directs Opportunity's cameras to interesting science targets. AEGIS was developed to enhance the usual targeting process involving scientists on the ground, which can require the rover to stay in the same place for a day or more while data are transmitted to Earth and targets are selected from preliminary images.

With AEGIS, the rover software analyzes images onboard, detects and prioritizes science targets in those images, and autonomously obtains novel, high-quality science data of the selected targets, within 45 minutes, with no communication back to Earth required. AEGIS chooses science targets based on pre-specified criteria set by the mission science team. AEGIS can be used as soon as the rover reaches a new area and is especially beneficial during and after long drives. It enables high-quality data to be collected more often and in a significantly reduced time frame. The incorporation of AEGIS in the Mars Science Laboratory flight software is in progress, and it is also being considered for future NASA missions.

The AEGIS capability was developed as part of a larger autonomous science framework called OASIS, which is designed to allow a rover to identify and react to serendipitous science opportunities. The AEGIS system takes advantage of the OASIS ability to detect and characterize interesting terrain features in rover images. This technology was created with assistance from NASA's Mars Exploration Rover Project and with funding from the New Millennium Program, the Mars Technology Program, the JPL Research and Technology Development Program, the JPL Interplanetary Network Development Program and the Intelligent Systems Program.

NASA Launches Most Capable and Robust Rover to Explore Mars

NASA began a historic voyage to Mars with the Nov. 26 launch of the Mars Science Laboratory (MSL), which carries a car-sized rover named Curiosity. Liftoff from Cape Canaveral Air Force Station aboard an Atlas V rocket occurred at 10:02 a.m. EST. "We are very excited about sending the world's most advanced scientific laboratory to Mars," NASA Administrator Charles Bolden said. "MSL will tell us critical things we need to know about Mars, and while it advances science, we'll be working on the capabilities for a human mission to the Red Planet and to other destinations where we've never been."

The mission will pioneer precision landing technology and a sky-crane touchdown to place Curiosity near the foot of a mountain inside Gale Crater on Aug. 6, 2012. During a nearly two-year prime mission after landing, the rover will investigate whether the region has ever offered conditions favorable for microbial life, including the chemical ingredients for life. "The launch vehicle has given us a great injection into our trajectory, and we're on our way to Mars," said MSL Project Manager Peter Theisinger of NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif. "The spacecraft is in communication, thermally stable and power positive."

The Atlas V initially lofted the spacecraft into Earth orbit and then, with a second burst from the vehicle's upper stage, pushed it out of Earth orbit into a 352-million-mile (567-million-kilometer) journey to Mars. "Our first trajectory correction maneuver will be in about two weeks," Theisinger said. "We'll do instrument checkouts in the next several weeks and continue with thorough preparations for the landing on Mars and operations on the surface." Curiosity's ambitious science goals are among the mission's many differences from earlier Mars rovers. It will use a drill and scoop at the end of its robotic arm to gather soil and powdered samples of rock interiors, then sieve and parcel out these samples into analytical laboratory instruments inside the rover.

Also visit : web design dubai

NASA Probe Data Show Evidence Of Liquid Water On Icy Europa

Data from a NASA planetary mission have provided scientists evidence of what appears to be a body of liquid water, equal in volume to the North American Great Lakes, beneath the icy surface of Jupiter's moon, Europa.The data suggest there is significant exchange between Europa's icy shell and the ocean beneath. This information could bolster arguments that Europa's global subsurface ocean represents a potential habitat for life elsewhere in our solar system. The findings are published in the scientific journal Nature.

"The data opens up some compelling possibilities," said Mary Voytek, director of NASA's Astrobiology Program at agency headquarters in Washington. "However, scientists worldwide will want to take a close look at this analysis and review the data before we can fully appreciate the implication of these results." NASA's Galileo spacecraft, launched by the space shuttle Atlantis in 1989 to Jupiter, produced numerous discoveries and provided scientists decades of data to analyze. Galileo studied Jupiter, which is the most massive planet in the solar system, and some of its many moons.

One of the most significant discoveries was the inference of a global salt water ocean below the surface of Europa. This ocean is deep enough to cover the whole surface of Europa and contains more liquid water than all of Earth's oceans combined. However, being far from the sun, the ocean surface is completely frozen. Most scientists think this ice crust is tens of miles thick. "One opinion in the scientific community has been if the ice shell is thick, that's bad for biology. That might mean the surface isn't communicating with the underlying ocean," said Britney Schmidt, lead author of the paper and postdoctoral fellow at the Institute for Geophysics, University of Texas at Austin. "Now, we see evidence that it's a thick ice shell that can mix vigorously and new evidence for giant shallow lakes. That could make Europa and its ocean more habitable."

Schmidt and her team focused on Galileo images of two roughly circular, bumpy features on Europa's surface called chaos terrains. Based on similar processes seen on Earth -- on ice shelves and under glaciers overlaying volcanoes they developed a four-step model to explain how the features form. The model resolves several conflicting observations. Some seemed to suggest the ice shell is thick. Others suggest it is thin. This recent analysis shows the chaos features on Europa's surface may be formed by mechanisms that involve significant exchange between the icy shell and the underlying lake. This provides a mechanism or model for transferring nutrients and energy between the surface and the vast global ocean already inferred to exist below the thick ice shell. This is thought to increase the potential for life there.

2011 Awards Presented For Achievements In Earth Remote Sensing

NASA and the U.S. Department of the Interior presented the 2011 William T. Pecora awards to Alan H. Strahler, professor of geography and environment at Boston University, and to the Canada Centre for Remote Sensing at a ceremony Tuesday in Herndon, Va. Strahler was recognized for his contributions to remote-sensing science, leadership and education, which have improved the fundamental understanding of the remote-sensing process and its applications for observing land surface properties. The Canada Centre for Remote Sensing received the group award for outstanding collaboration across national boundaries.

The awards were presented at the Pecora 18 Symposium by Michael Freilich, director of NASA's Earth Science Division in the Science Mission Directorate and Lori Caramanian, Department of the Interior's deputy assistant secretary for water and science. "Understanding of our home planet and predicting future global environmental changes require both individual technical efforts and worldwide collaborations," Freilich said. "This year's awards acknowledge just how important sustained, decades-long efforts by individuals and nations are to Earth science, and the benefits they can bring to the world."

Strahler's early theoretical contributions in describing the interactions of light with forest trees led to realistic and quantifiable approaches employed today in many areas of remote sensing. Strahler also advanced the field of image analysis by developing new methods for incorporating spatial information. His innovative methods for incorporating spatial information such as size, shape, and texture in the interpretation of remotely sensed image data were important in the coupling of remote sensing with geographic information systems.

The Canada Centre for Remote Sensing was recognized for advancing the understanding of Earth over a period of 40 years through the development of important technologies and innovative applications. The centre contributed substantially to the success of global remote-sensing technology through partnerships with many different groups, domestically and internationally. As a national remote-sensing program, the centre served as a model for numerous other countries where visiting scientists learned advanced remote-sensing science and how to organize a national remote-sensing program.

NASA and the Department of the Interior present individual and group Pecora Awards to honor outstanding contributions in the field of remote sensing and its application to understanding Earth. The award was established in 1974 to honor the memory of William T. Pecora, former director of the U.S. Geological Survey and undersecretary of the Department of the Interior. Pecora was influential in the establishment of the Landsat satellite program, which created a continuous, nearly 40-year record of Earth's land areas.

NASA Mission Suggests Sun and Planets Constructed Differently

PASADENA, Calif. -- NASA's next Mars rover has completed the journey from its California birthplace to Florida in preparation for launch this fall.

The Mars Science Laboratory rover, also known as Curiosity, arrived late Wednesday night at NASA's Kennedy Space Center aboard an Air Force C-17 transport plane. It was accompanied by the rocket-powered descent stage that will fly the rover during the final moments before landing on Mars. The C-17 flight began at March Air Reserve Base in Riverside, Calif., where the boxed hardware had been trucked from NASA's Jet Propulsion Laboratory in Pasadena, Calif.

The rover's aeroshell -- the protective covering for the trip to the Red Planet -- and the cruise stage, which will guide it to Mars, arrived at Kennedy last month. The mission is targeted to launch from Cape Canaveral Air Force Station between Nov. 25 and Dec. 18. The car-size rover will land on Mars in August 2012.

"The design and building part of the mission is nearly behind us now," said JPL's David Gruel, who has managed Mars Science Laboratory assembly, test and launch operations since 2007. "We're getting to final checkouts before sending the rover on its way to Mars."

The rover and other spacecraft components will undergo more testing before mission staff stack them and fuel the on board propulsion systems. Curiosity should be enclosed in its aeroshell for the final time in September and delivered to Kennedy's Launch Complex 41 in early November for integration with a United Launch Alliance Atlas V rocket.

Curiosity is about twice as long and more than five times as heavy as any previous Mars rover. Its 10 science instruments include two for ingesting and analyzing samples of powdered rock delivered by the rover's robotic arm. During a prime mission lasting one Martian year -- nearly two Earth years -- researchers will use the rover's tools to study whether the landing region has had environmental conditions favorable for supporting microbial life and favorable for preserving clues about whether life existed.

NASA and OPTIMUS PRIME Collaborate to Educate Youth

NASA has developed a contest to raise students' awareness of technology transfer efforts and how NASA technologies contribute to our everyday lives.

NASA is collaborating with Hasbro using the correlation between the popular TRANSFORMERS brand, featuring its leader NASA OPTIMUS PRIME, and spinoffs from NASA technologies created for aeronautics and space missions that are used here on Earth. The goal is to help students understand that NASA technology 'transforms' into things that are used daily. These 'transformed' technologies include water purifiers, medical imaging software, or fabric that protects against UV rays.

The Innovative Partnerships Program Office at NASA's Goddard Space Flight Center in Greenbelt, Md., in conjunction with NASA's Office of Education, has designed a video contest for students from third to eighth grade. Each student, or group of students, will submit a three- to five-minute video on a selected NASA spinoff technology listed in the 2009 Spinoff publication. Videos must demonstrate an understanding of the NASA spinoff technology and the associated NASA mission, as well as the commercial application and public benefit associated with the “transformed” technology. Video entries are due by December 31.

The videos will be posted on the NASA YouTube channel, and the public will be responsible for the first round of judging. The top five submissions from each of the two grade groups (third-fifth and sixth-eighth) will advance for final judging. A NASA panel will select a winning entry from each group, and the students will receive a glass OPTIMUS PRIME Spinoff Award at the Space Foundation's National Space Symposium in 2011. The innovators of the NASA technology highlighted in the winning videos also will receive trophies, along with their commercial partners.