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MessagePosté le: Mar 26 Juin - 04:21 (2018)    Sujet du message: Répondre en citant

WASHINGTON vans old skool uk sale , May 7 (Xinhua) -- The U.S. Air Force's mysterious X-37B space plane returned to Earth on Sunday after completing a secret space mission that lasted nearly two years.

The reusable, unmanned X-37B Orbital Test Vehicle landed at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, an airport used by the U.S. space agency's Space Shuttle for landing until the program's end in 2011.

The just-ended mission, known as Orbital Test Vehicle mission 4 (OTV-4), was launched in May 2015 and conducted secret experiments for a total of 718 days while in orbit.

It's the fourth and longest-running mission for the X-37B program, run by the U.S. Air Force's Rapid Capabilities Office. The program began as a NASA project in 1999 but was later transferred to the Pentagon.

"The landing of OTV-4 marks another success for the X-37B program and the nation vans old skool uk ," Lt. Col. Ron Fehlen, X-37B program manager, said in a statement.

"This mission once again set an on-orbit endurance record and marks the vehicle's first landing in the state of Florida," Fehlen said. "We are incredibly pleased with the performance of the space vehicle and are excited about the data gathered to support the scientific and space communities."

The first three missions all ended with landings at Vandenberg Air Force Base in California.

The X-37B, built by Boeing, looks much like NASA's retired space shuttles , only much smaller. It is boosted into orbit by a rocket and lands like an aircraft on a conventional runway.

The exact purpose of the X-37B was never revealed and the secrecy surrounding the project has led to speculation that the solar-powered X-37B can be used as a spy satellite or to deliver weapons from space.

The U.S. Air Force only confirmed that the unmanned aircraft "performs risk reduction, experimentation and concept of operations development for reusable space vehicle technologies."

"Technologies being tested in the program include advanced guidance, navigation and control, thermal protection systems, avionics, high temperature structures and seals , conformal reusable insulation, lightweight electromechanical flight systems, advanced propulsion systems, advanced materials and autonomous orbital flight, reentry and landing," it said.

The U.S. Air Force said it's now preparing to launch the fifth X-37B mission from Cape Canaveral Air Force Station , Florida, later this year.

LONDON, May 23 (Xinhua) -- At least 19 people were killed and 50 more injured in a blast that occurred outside Manchester Arena right after the end of a concert late Monday night, the police confirmed early Tuesday.

"So far 19 people have been confirmed dead, with around 50 others injured," the statement said.

The latest statement by the police said the case is currently being treated as "a terrorist incident".

"This is currently being treated as a terrorist incident until police know otherwise ," said the police.

They said the explosion struck just before 10:35 p.m. local time.

According to local media reports, investigators are looking at the possibility of a suicide bomber.

A fleet of ambulances raced to the scene in the city center as people fled the scene. People were urged to evacuate the busy Victoria Railway Station close to the arena, with all trains halted. The whole area was also evacuated and a huge cordon set up.

Panic was triggered among the mostly young audience by the blast which took place as they were leaving the concert by American artist Ariana Grande, said the police.

The Manchester Arena has a capacity of around 21,000, but it is not clear how many of those struck by the blast had tickets to the concert.

One concertgoer described to local media how she heard a single bang , and people shouted "It's bomb." That sparked panic, she said, with people, many hysterical, running away from the scene. She said she feared many people, some children , could have been crushed in the stampede for the exit.

"It was just a feeling of panic," she said.

Another eye witness described how many people were crying, with parents desperately clinging onto their children. There was a smell of burning and smoke, said another fan at the concert.

A significant number of casualties were being treated by paramedics, as others were rushed to hospitals in and around the city.

Cabs are taking the concertgoers for free to nearby hotels, and hundreds of people in the city are offering spare beds and rooms for those stranded in the city.

Meanwhile , the police said a controlled explosion is being carried out in an area near the Manchester Arena venue.

"There will be a controlled explosion in Cathedral Gardens shortly if you hearing anything don't be concerned," said a police Twitter, referring to a park near the concert venue.

A large area of Manchester city center, just a few hundred meters from the arena, was destroyed in 1996 by a bomb planted by the Irish Republican Army.

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MessagePosté le: Mar 26 Juin - 04:21 (2018)    Sujet du message: Publicité

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