Historic Pluto flyby for NASA craft tomorrow
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There鈥檚 a near-perfect heart shape on Pluto鈥檚 rusty red surface. The dwarf planet is dotted with bright points which may be ice caps, and a mysterious dark shape nicknamed 鈥淭he Whale.鈥
Scientists are seeing all this for the first time as a piano-sized NASA spacecraft, New Horizons, hurtles toward the distant celestial body on its way toward a historic flyby tomorrow.
鈥淲e鈥檙e at the 鈥榤an in the moon鈥 stage of viewing Pluto,鈥 said John Spencer of the Southwest Research Institute in Colorado.
鈥淚t鈥檚 easy to imagine you鈥檙e seeing familiar shapes in this bizarre collection of light and dark features. However, it鈥檚 too early to know what these features really are.鈥
But scientists expect those mysteries to be solved in coming days as the spacecraft closes in on Pluto, once considered the farthest planet in the solar system before it was reclassified as a dwarf planet in 2006.
That same year, the New Horizons mission launched from Cape Canaveral, Florida on a journey of nearly 10 years and three billion miles, becoming the first spacecraft to explore this far-away frontier.
鈥淲e are coming up on the culmination of all this effort, all this planning,鈥 said Joe Peterson, a science operations leader for the New Horizons mission. 鈥淰ery soon we are going to go by Pluto and get the actual goods.鈥
The closest flyby is set for tomorrow at 7:50am, when New Horizons passes within 9,977 kilometers of Pluto. Moving at a speed of 49,570 kilometers per hour, it is the fastest spacecraft ever launched.
The US$700 million unmanned spacecraft has seven sophisticated science instruments and cameras that are collecting data daily and sending it back to Earth. They include three optical instruments, two plasma instruments, a dust sensor and a radio science receiver.
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