Pluto-Bound New Horizons Spacecraft Gets a Boost from JupiterMarch 01, 2007NASA's New Horizons spacecraft successfully completed a flyby of Jupiter early this morning, using the massive planet's gravity to pick up speed on its 3-billion mile voyage to Pluto and the unexplored Kuiper Belt region beyond. "We're on our way to Pluto," says New Horizons Mission Operations Manager Alice Bowman, of the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md. "The swingby was a success; the spacecraft is on course and performed just as we expected." New Horizons came within 1.4 million miles (2.3 million kilometers) of Jupiter at 12:43 a.m. EST, threading an "aim point" that puts it on target to reach the Pluto system in July 2015. During closest approach the spacecraft was out of touch with Earth - busily gathering science data on the giant planet, its moons and atmosphere - but by 11:55 a.m. EST mission operators at APL had established contact with New Horizons through NASA's Deep Space Network and confirmed its health and status. The fastest spacecraft ever launched, New Horizons is gaining nearly 9,000 miles per hour (14,000 kilometers per hour) from Jupiter's gravity - half the speed of a space shuttle in orbit - accelerating past 52,000 mph (83,600 km/h) away from the Sun. New Horizons has covered approximately 500 million miles (800 million kilometers) since launch in January 2006, and reached Jupiter quicker than the seven previous spacecraft to visit the solar system's largest planet. Today it raced through an aim point just 500 miles (800 kilometers) across - the equivalent of a skeet shooter in Washington hitting a target in Baltimore on the first try. New Horizons has been running through an intense six-month systems check that will include more than 700 science observations of the Jupiter system by the end of June. More than half of those observations are taking place this week, including scans of Jupiter's turbulent atmosphere, measurements of its magnetic cocoon (called the magnetosphere), surveys of its delicate rings, maps of the composition and topography of the large moons Io, Europa, Ganymede and Callisto, and a detailed look at volcanic activity on Io. While much of the close-in science data will be sent back to Earth during the coming weeks, the team will download a sampling of images this week to verify New Horizons' performance. The outbound leg of New Horizons' journey includes the first-ever trip down the long "tail" of Jupiter's magnetosphere, a wide stream of charged particles that extends more than 100 million miles beyond the planet. And telescopes on and above Earth - from amateur astronomers' backyard telescopes, to the giant Keck telescope in Hawaii, to the Hubble Space Telescope, Chandra X-Ray Observatory and others - are turning to Jupiter as New Horizons flies by, ready to provide global context to the close-up data New Horizons gathers. "We designed the entire Jupiter encounter to be a tough test for the mission team and our spacecraft, and we're passing the test," says New Horizons Principal Investigator Alan Stern, from the Southwest Research Institute in Boulder, Colo. "We're not only learning what we can expect from the spacecraft when we visit Pluto in eight years, we're already getting some stunning science results at Jupiter - and there's more to come." For the latest news and images, visit http://pluto.jhuapl.edu or www.nasa.gov/newhorizons/ The Johns Hopkins University |
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| Related Pluto Current Events and Pluto News Articles IBEX satellite finds ribbon-like structure at edge of heliosphere The invisible structures of space are becoming less so, as scientists look out to the far edges of the solar wind bubble that separates our solar system from the interstellar cloud through which it flies. Cosmic Rays Hit Space Age High Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA's ACE (Advanced Composition Explorer) spacecraft, galactic cosmic rays have just hit a Space Age high. CU-Boulder space scientists set for final spacecraft flyby of Mercury NASA's MESSENGER spacecraft, which is toting an $8.7 million University of Colorado at Boulder instrument, will make its third and final flyby of Mercury on Sept. 29 -- a clever gravity-assist maneuver that will steer it into orbit around the rocky planet beginning in March 2011. Lunar Reconnaissance Orbiter's LAMP shedding light on permanently shadowed regions of the Moon NASA's Lunar Reconnaissance Orbiter (LRO), launched on June 18 of this year, has begun its extensive exploration of the lunar environment and will return more data about the Moon than any previous mission. Caltech visiting associate champions the study of solar eclipses in the modern era Championing the modern-day use of solar eclipses to solve a set of modern problems is the goal of a review article written by Jay Pasachoff, visiting associate at the California Institute of Technology (Caltech) and Field Memorial Professor of Astronomy at Williams College. Radio telescope images reveal planet-forming disk orbiting twin suns Astronomers are announcing today that a sequence of images collected with the Smithsonian's Submillimeter Array (SMA) clearly reveals the presence of a rotating molecular disk orbiting the young binary star system V4046 Sagittarii. The lower atmosphere of Pluto revealed Using ESO's Very Large Telescope, astronomers have gained valuable new insights about the atmosphere of the dwarf planet Pluto. The scientists found unexpectedly large amounts of methane in the atmosphere, and also discovered that the atmosphere is hotter than the surface by about 40 degrees, although it still only reaches a frigid minus 180 degrees Celsius. NASA spacecraft ready to explore outer solar system The first NASA spacecraft to image and map the dynamic interactions taking place where the hot solar wind slams into the cold expanse of space is ready for launch Oct. 19. The two-year mission will begin from the Kwajalein Atoll, a part of the Marshall Islands in the Pacific Ocean. Plutoid chosen as name for Solar System objects like Pluto Almost two years after the International Astronomical Union (IAU) General Assembly introduced the category of dwarf planets, the IAU, as promised, has decided on a name for transneptunian dwarf planets similar to Pluto. Astonomers find tiny planet orbiting tiny star An international team of astronomers led by David Bennett of the University of Notre Dame has discovered an extra-solar planet of about three Earth masses orbiting a star with a mass so low that its core may not be large enough to maintain nuclear reactions. The result was presented Monday (June 2) at the American Astronomical Society annual meeting in St. Louis. More Pluto Current Events and Pluto News Articles |
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