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New Horizons Now Closer To Pluto Than Earth
Washington DC (SPX) Dec 30, 2009 The new year approaches with New Horizons zooming past another milestone: the NASA spacecraft is now closer to target planet Pluto than its home planet, Earth. "This is the first of several milestones over the next 10 months that mark the halfway points in our journey to the solar system's frontier, where Pluto lies. We on the mission team know we will have a long way to go, but are proud to have brought the spacecraft to this important mile marker in our journey across the entirety of our solar system," says New Horizons Principal Investigator Alan Stern, of the Southwest Research Institute. Nearly four years after lifting off from Cape Canaveral Air Force Station, Fla., on Jan. 19, 2006, the speedy probe is now approximately 1.527 billion miles (2.463 billion kilometers) from Earth - and 1.526 billion miles (nearly 2.462 billion kilometers) from the Pluto system. The spacecraft is just a little past halfway between the orbits of giant planets Saturn and Uranus, getting closer to Pluto at the rate of about 750,000 miles (1.2 million kilometers) per day. But closest approach to Pluto is still just over 5.5 years away, on July 14, 2015. New Horizons continues operating normally - in hibernation - collecting interplanetary dust impact data as it flies on. The operations team at the Johns Hopkins University Applied Physics Lab in Laurel, Md., plans to wake the craft on Jan. 5 for 10 days of light maintenance and tracking activities; a longer and far more intensive wakeup is planned for next summer.
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Hubble Finds Smallest Kuiper Belt Object Ever SeenWashington DC (SPX) Dec 18, 2009 NASA's Hubble Space Telescope has discovered the smallest object ever seen in visible light in the Kuiper Belt, a vast ring of icy debris that is encircling the outer rim of the solar system just beyond Neptune. The needle-in-a-haystack object found by Hubble is only 3,200 feet across and a whopping 4.2 billion miles away. The smallest Kuiper Belt Object (KBO) seen previously in reflected ... read more |
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