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Astronomers funded by NASA are monitoring the trajectory of an asteroid estimated to be 164-feet wide. The name of this asteroid is 2007 WD 5. Earlier this asteroid was expected to collide with Mars on 30th Jan, 2008. But now scientists are sure that the asteroid will not hit mars rather real threat is to Earth. Observations provided by the astronomers and analyzed by NASA's Near-Earth Object Office at the Jet Propulsion Laboratory in Pasadena, California, indicate the object may pass within 30,000 miles of Mars at about 6 a.m. EST on Jan. 30, 2008.
"Right now asteroid 2007 WD5 is about half-way between the Earth and Mars and closing the distance at a speed of about 27,900 miles per hour. Over the next five weeks, we hope to gather more information from observatories so we can further refine the asteroid's trajectory.
Asteroid 2007 WD5 was first discovered on Nov. 20, 2007, by the NASA-funded Catalina Sky Survey and put on a "watch list" because its orbit passes near the Earth. Further observations from both the NASA and the Magdalena Ridge Observatory in New Mexico gave scientists enough data to determine that the asteroid was not a danger to Earth, but could potentially impact Mars. But just two-three days ago scientists have started to admit that it was their mistake. The asteroid will possibly not be hazardous for Mars, rather it has become a matter of concern for Earth.