Aug 28 2012

From The Space Library

RELEASE: 12-296 CURIOSITY ROVER PLAYS FIRST SONG TRANSMITTED FROM ANOTHER PLANET

PASADENA -- For the first time in history, a recorded song has been beamed back to Earth from another planet. Students, special guests and news media gathered at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., today to hear "Reach for the Stars" by musician will.i.am after it was transmitted from the surface of Mars by the Curiosity rover. NASA Administrator Charles Bolden addressed the crowd in a video message encouraging students to study science, technology, engineering and math (STEM). "Mars has always fascinated us, and the things Curiosity tells us about it will help us learn about whether or not life was possible there," Bolden said. "And what future human explorers can expect. will.i.am has provided the first song on our playlist of Mars exploration." In opening remarks, NASA Associate Administrator for Education and space shuttle astronaut Leland Melvin said, "I can think of no greater way to honor NASA pioneer Neil Armstrong's life and legacy than to inspire today's students to follow his path. That first footprint that Neil placed on the lunar surface left an indelible mark in history. Perhaps one of our students here today or watching on NASA Television will be the first to set foot on the surface of Mars and continue humanity's quest to explore." Musician and entrepreneur will.i.am shared his thoughts about "Reach for the Stars" becoming the first interplanetary song and an anthem for NASA education. The entertainer is a well-known advocate of science and technology education. He said, "Today is about inspiring young people to lead a life without limits placed on their potential and to pursue collaboration between humanity and technology through STEAM education. I know my purpose is to inspire young people, because they will keep inspiring me back." After completing a journey of more than 300 million miles from Earth to Mars and back, the opening orchestral strains of "Reach for the Stars" filled the auditorium. The event added to continuing worldwide interest in Curiosity's mission. NASA engineers spoke to attendees about the Curiosity mission, and the systems engineering and orbital mechanics involved in getting the song file back from Mars. Students had the opportunity to ask questions of all program participants. Earlier in the day, students received a guided tour of JPL to view rover models and learn about STEM career options. During the event, will.i.am's i.am angel Foundation and Discovery Education announced a $10 million classroom education initiative that will reach 25 million students annually, including many from underserved communities. Focused on STEAM (science, technology, engineering, arts and mathematics) educational themes, the Discovery Education initiative will incorporate NASA content and space exploration themes as part of the curriculum.

RELEASE: 12-298 NASA'S KEPLER DISCOVERS MULTIPLE PLANETS ORBITING A PAIR OF STARS

NASA's Kepler mission has discovered multiple transiting planets orbiting two suns for the first time. The system, known as a circumbinary planetary system, is 4,900 light-years from Earth in the constellation Cygnus. Coming less than a year after the announcement of the first circumbinary planet, Kepler-16b, this discovery proves that more than one planet can form and persist in the stressful realm of a binary star. The discovery demonstrates the diversity of planetary systems in our galaxy. Astronomers detected two planets in the Kepler-47 system, a pair of orbiting stars that eclipse each other every 7.5 days from our vantage point on Earth. One star is similar to the sun in size, but only 84 percent as bright. The second star is diminutive, measuring only one-third the size of the sun and less than 1 percent as bright. "In contrast to a single planet orbiting a single star, the planet in a circumbinary system must transit a 'moving target.' As a consequence, time intervals between the transits and their durations can vary substantially, sometimes short, other times long," said Jerome Orosz, associate professor of astronomy at San Diego State University and lead author of the paper. "The intervals were the telltale sign these planets are in circumbinary orbits." The inner planet, Kepler-47b, orbits the pair of stars in less than 50 days. While it cannot be directly viewed, it is thought to be a sweltering world, where the destruction of methane in its super-heated atmosphere might lead to a thick haze that could blanket the planet. At three times the radius of Earth, Kepler-47b is the smallest known transiting circumbinary planet. The outer planet, Kepler-47c, orbits its host pair every 303 days, placing it in the so-called "habitable zone," the region in a planetary system where liquid water might exist on the surface of a planet. While not a world hospitable for life, Kepler-47c is thought to be a gaseous giant slightly larger than Neptune, where an atmosphere of thick bright water-vapor clouds might exist. "Unlike our sun, many stars are part of multiple-star systems where two or more stars orbit one another. The question always has been -- do they have planets and planetary systems? This Kepler discovery proves that they do," said William Borucki, Kepler mission principal investigator at NASA's Ames Research Center in Moffett Field, Calif. "In our search for habitable planets, we have found more opportunities for life to exist." To search for transiting planets, the research team used data from the Kepler space telescope, which measures dips in the brightness of more than 150,000 stars. Additional ground-based spectroscopic observations using telescopes at the McDonald Observatory at the University of Texas at Austin helped characterize the stellar properties. The findings are published in the journal Science. "The presence of a full-fledged circumbinary planetary system orbiting Kepler-47 is an amazing discovery," said Greg Laughlin, professor of Astrophysics and Planetary Science at the University of California in Santa Cruz. "These planets are very difficult to form using the currently accepted paradigm, and I believe that theorists, myself included, will be going back to the drawing board to try to improve our understanding of how planets are assembled in dusty circumbinary disks." Ames manages Kepler's ground system development, mission operations and science data analysis. NASA's Jet Propulsion Laboratory in Pasadena, Calif., managed the Kepler mission development. Ball Aerospace & Technologies Corp. in Boulder, Colo., developed the Kepler flight system and supports mission operations with the Laboratory for Atmospheric and Space Physics at the University of Colorado in Boulder. The Space Telescope Science Institute in Baltimore archives, hosts and distributes Kepler science data. Kepler is NASA's tenth Discovery Mission and funded by NASA's Science Mission Directorate at the agency's headquarters in Washington.