2014年4月19日星期六

U.S. high-speed collision detectors monthly self-destruct many parts due to high temperature vaporiz

WASHINGTON, April 18 - The U.S. NASA ground controllers on the 18th said that Cheap Georgia Bulldogs Jerseys due to fuel exhaustion, Cheap Auburn Tigers Jerseys the United States' Environmental lunar atmosphere and dust detector (LADEE) "as planned high-speed impact of the back of the moon, but no one or detector to capture its final journey.

According to NASA news release, the vending machine the size of the lunar probe between the U.S. Eastern Time at 0:30 on the 18th to 1:22 (Beijing time 12:30 to 13:22 between) in the fall and the collapse of the lunar surface, many Cheap Miami Hurricanes Jerseys parts due to the high temperatures generated when the impact vaporized.

project scientist Rick Yifei Ke said: "The lunar atmosphere and dust environment impact velocity detector to reach 3,600 miles per hour (about 5800 km), which is the high-energy rifle bullets flying about three times the speed of it. kinds Cheap Houston Cougars Jerseys of speed bumps, no gentle at all. problem is Cheap Florida State Seminoles Jerseys just that it is caused by a pothole on the hillside, or a flat piece of wreckage scattered over the lunar surface. "

"lunar atmosphere and dust environment probe" was launched in September last year and one month after entering lunar orbit. The mission of flying: a test between the Earth and the Moon broadband communication systems; analysis lunar thin atmosphere; investigate the causes of the mysterious radiance "Apollo" spacecraft on the moon before sunrise horizon astronauts saw.

main task of the detector at the end of March this year, due to the amount of fuel needed to keep it flying depleted, plus it can not return to Earth, NASA intentionally crashed into the back to allow the probe to the moon. Away from the impact site, where all previous on Earth can not be observed.

4 May 11, ground controllers were the last track detector control, but because of the lunar gravitational field is very uneven, NASA estimated time of impact was on the 21st of this month, is a 21 or moment.

NASA says the next few months, ground controllers will use another detector America - "Lunar Reconnaissance Orbiter," looking for "lunar atmosphere and dust environment probe" crash sites to determine the specific impact time.

(Original title: The United States hit a monthly high speed detector destruct)

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