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MessagePosté le: Mar 13 Mar - 07:00 (2018)    Sujet du message: Hillary Clinton is assailing Donald Trump's record as a bus Répondre en citant

Photo: China Daily Test for technology to help probe return to Earth with soil samples
China will launch an experimental spacecraft between Friday and Sunday to test a key technology designed to help a future lunar probe return to Earth with soil samples.
The unnamed spacecraft is due to reach a location near the moon before returning to Earth [url:ab67603adf=http://www.jordan1retroflyknit.com/cheap-men-s-air-jordan-1-retro-bred-toe-gym-red-black-555088-610-for-sale.html]Cheap Men's Air Jordan 1 Retro Bred Toe Gym Red Black 555088-610 For Sale
 , said a spokesman for the China National Space Administration, which announced the launch on Wednesday.
It will be China's first lunar module to return to Earth, at a speed close to 11.2 km per second, space experts said.
Hu Hao, chief designer of the lunar exploration program's third phase Cheap Men's Air Jordan 1 Retro High OG Los Primeros Black AH7739-001 For Sale , said in an earlier interview with China Daily that the re-entry speed could cause the return capsule to overheat or become difficult to track and control.
No simulated tests on Earth can recreate the challenge, he said.
The space agency spokesman said the re-entry will involve one or more "skips" off the Earth's atmosphere to slow the spacecraft before final re-entry. It is due to land in a central area of the Inner Mongolia autonomous region.
Experts said "skip re-entry" could help to disperse the huge amount of heat that is usually generated on faster descents.
Data from the United States' National Aeronautics and Space Administration show that "skip re-entry" technology was used on lunar missions by the former Soviet Union.
If successful, the technology will help the Chang'e-5 lunar probe to return to Earth with lunar soil samples around 2017, the spokesman said.
On Wednesday, technicians at the Xichang Satellite Launch Center in Sichuan province began fueling the Long March 3C rocket that will carry the experimental spacecraft.
Rocket expert Jiang Jie said that compared with the previous three launch missions this one poses the sternest test.
"The mission requires that the rocket sends the spacecraft to a fixed spot in space. Any inaccuracy will mean that the spacecraft will fail to enter the moon's orbit Cheap Men's Air Jordan 1 Retro Jet Black White For Sale ," she told China Central Television.
Liu Jianzhong, deputy chief engineer for the Long March 3 series rockets, said the mission will have a launch window of 35 minutes each day between Friday and Sunday.
The national space agency said the experimental mission marks the start of the third phase of China's lunar program featuring probes returning to Earth.
The country launched the Chang'e-1 probe in 2007, Chang'e-2 in 2010 and Chang'e-3 in 2013, completing experiments in orbiting and landing on the moon.
China has one moon rover Cheap Mens Air Jordan 1 OG Royal Black Blue 555088-007 For Sale , the Jade Rabbit, on the lunar surface. This craft, launched as part of the Chang'e-3 mission late last year, has been declared a success by Chinese authorities, although it has been plagued by mechanical troubles.
China's National Stadium - the Bird's Nest - is set to host a London derby on July 22 Cheap Mens Air Jordan 1 Reverse Shattered Backboard Black 555088-113 For Sale , with Premier League -giants Arsenal and Chelsea facing off each other in a preseason buildup.
Last year, the stadium was to host a high-profile Manchester derby, but later the match was marred by a pitch problem which finally led to the cancelation of the derby.
The pitch was deemed unplayable due to continuous rain in the capital in the summer last year, making parts of the pitch saturated.
The organizers hope to use this year's London derby to restore the reputation of the pitch condition at Bird's Nest.
"We invited the officials from both clubs to Bird's Nest to check if the renovated pitch meets the requirement, and they approved the current condition Cheap Mens Air Jordan 1 Low NS White White 872782-100 For Sale ," said Zhang Zhenpeng, a senior official with the organizing committee.
Under Italian coach Antonio -Conte, Chelsea are the current leaders of the English top flight, while the Gunners, currently sitting seventh on the table Cheap Air Jordan 1 Brown Mens For Sale , may have a new coach coming this summer as longtime manager Arsene Wenger is highly likely to leave the North London club at the end of the current campaign.
Though the organizers have put Arsenal star Alexis Sanchez on the giant poster, the Chile forward is -unlikely to make the trip as the Copa America champions will be playing in the Confederations Cup in Russia from June 17 to July 2.
Chelsea's Diego Costa - who is also on the poster - is in talks for a move to a Chinese club, Sky Sports reported last week.
The two sides will face each other in the FA Cup final next month at Wembley in London.
LONDON, May 6 (Xinhua) -- Following are the English Premier League standings after Saturday's matches (tabulated under games played, won Cheap Men's Air Jordan 1 Retro High Flyknit Black Red 919704-001 For Sale , drawn, lost, goals for, goals against, points):
Chelsea 34 26 3 5 72 29 81
Tottenham Hotspur 35 23 8 4 71 23 77
Manchester City 35 20 9 6 70 37 69
Liverpool 35 20 9 6 71 42 69
Manchester United 34 17 14 3 51 25 65
Arsenal 33 18 6 9 64 42 60
Everton 36 16 10 10 60 41 58
West Brom 35 12 9 14 41 45 45
Leicester City 35 12 7 16 45 54 43
Bournemouth 36 11 9 16 52 65 42
West Ham United 36 11 9 16 45 59 42
Southampton 33 11 8 14 39 44 41
Stoke City 36 10 11 15 39 52 41
Burnley 36 11 7 18 37 51 40
Watford 35 11 7 17 37 58 40
Crystal Palace 36 11 5 20 46 61 38
Swansea City 36 10 5 21 41 69 35
Hull City 36 9 7 20 36 69 34
Middlesbrough 35 5 13 17 26 45 28
Sunderland 35 6 6 23 28 60 24
European aircraft go home on Chinese train
Chinese proficiency competition for college students in Turkey held in Istanbul
Warren Buffett's Berkshire Hathaway Annual Meeting held in Omaha Cheap Men's Air Jordan 1 Retro High Flyknit Royal Black White 919704-006 For Sale , U.S.
Vintage cars exhibited at 15th Int'l Old-timers Show in Sarajevo
Front part of C919 manufactured in China's Chengdu
Nearly 5,000 firefighters battle forest fire in Inner Mongolia
Monks receive donation from residents and tourists in China's Hangzhou
Snow scenery of Tianshan Mountains in China's Xinjiang
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