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Showing posts with label rocket. Show all posts
Showing posts with label rocket. Show all posts

Monday 29 June 2015

SpaceX’s rocket just exploded. Here’s why that’s such a big deal.


SpaceX’s unmanned Falcon 9 rocket launched from Cape Canaveral, Fla., on Sunday but exploded a few minutes after liftoff. It was on a mission to resupply the International Space Station. (NASA)

An unmanned SpaceX Falcon 9 rocket bound for the International Space Station exploded a couple of minutes after liftoff Sunday morning. It was the third cargo mission to the space station to be lost in recent months.

Elon Musk, SpaceX's founder tweeted that "there was an overpressure event in the upper stage liquid oxygen tank." He added: "That's all we can say with confidence right now. Will have more to say following a thorough" analysis.





NASA officials said it was not clear what caused the explosion. During an afternoon press conference William Gerstenmaier, NASA's associate administrator for human exploration and operations, said there was "no negligence here."

The three failures from three different launch providers show "the challenges facing engineering and the challenges facing space flight in general."

The rocket took off from Cape Canaveral, Fla., at 10:21 a.m., and everything seemed fine until 2 minutes at 19 seconds. Then video of the launch showed harrowing, if now familiar, images of a rocket exploding into a plume of smoke. The Falcon 9 was carrying more than 4,000 pounds of food and supplies to the space station, where American Scott Kelly is spending a year. There were no astronauts onboard.


The explosion also lost many student experiments and a water filtration system. Also onboard was a piece of hardware that would be used to help two new crew vehicles dock to the station.


Source : Wahshington Post

Saturday 1 November 2014

Virgin Galactic space rocket crash: Richard Branson’s dream of space tourism suffers setback after Mojave crash kills test pilot

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Virgin Galactic's SpaceShipTwo went down Friday afternoon, killing at least one while highlighting safety concerns that Richard Branson said could kill the space tourism industry.

Investors see private space travel as the market of the future. According to the Space Angels Network, an organization created to connect investors with entrepreneurs in the private space travel business, in 2012 the global space economy was valued at over $300 billion. The network says it is expected to grow to $600 billion by 2030.

On Tuesday, an unmanned rocket manufactured by Orbital Sciences, a Virginia company NASA has contracted to resupply the space station, exploded during its launch from NASA's Wallops Flight Facility in Virginia. This engine used in the flight, the Antares 130, is powered by old Soviet engines.

For years, Richard Branson, who owns a part of Virgin Galactic, has touted the bright future of space tourism. In February, he said that he and his children would be on the first space tourism flight.

Everybody who signs up knows this is the birth of a new space program and understands the risks that go with that," Branson said in an interview for Weekend magazine. "But every person wants to go on the first flight."

He even alluded to the fact that accidents could kill the industry. Right now, tickets to space cost a minimum $250,000 each.

“Space is hard, and today was a tough day,” said George Whitesides, CEO of Virgin Galactic, at a press conference. “We believe we owe to the folks who were flying these vehicles to understand this and to move forward, which is what we’ll do.”

Source : The Independent

Wednesday 29 October 2014

JAXA shows off second-generation asteroid explorer 'Hayabusa 2'

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Japan's space agency showed off a space probe to be launched next month that it hopes will answer questions about how life seeded Earth.

The Japan Aerospace Exploration Agency (JAXA) intends to land Hayabusa 2 on an asteroid orbiting between Earth and Mars. It is set to be launched by an H-2A rocket from the Tanegashima Space Center here on Nov. 30.

Its predecessor, launched in 2003, returned to Earth after a seven-year mission, during which it landed on an asteroid and collected sample material, an unprecedented achievement.

JAXA showed off the near complete body of its second-generation asteroid explorer to reporters on Oct. 27.

Hayabusa 2 will embark on a six-year journey to collect samples from an asteroid called 1999 JU3. Scientists expect the mission to shed light on the origins of the solar system and life on Earth.

The spherical asteroid is about 900 meters diameter and is thought to contain organic compounds and water, the key to life. It was first observed in 1999.

Hayabusa 2 arrived at Tanegashima island, south of Kagoshima, on Sept. 22. The capsule, impactor and other parts were then assembled.

A JAXA official said Hayabusa 2 will be attached to the rocket after fueling operations are complete and the exterior of the explorer has been inspected for flaws.

Hayabusa 2 is slated to reach the asteroid between June and July in 2018, and spend 18 months on the celestial body before returning to Earth between November and December in 2020.

The explorer will release the impactor to smash a crater and collect mineral samples that have not been exposed to and affected by the heat of the sun.

Russian Cargo Ship Lifts Off For Space Station

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An unmanned Russian cargo ship successfully lifted off for the International Space Station (ISS) on October 29.

The Progress 57 craft was launched atop a Soyuz rocket at 8:09 a.m. Prague time from the Russian-leased Baikonur facility in Kazakhstan.

"Everything looks good on the Soyuz booster and the Progress resupply ship," an announcer on the U.S. space agency's NASA TV said.

The launch came nine hours after a privately operated rocket exploded seconds after liftoff in the United States, causing the loss of cargo ship that was also bound for the ISS.

The explosion of the Antares was the first such accident since NASA turned to private operators to deliver cargo to the station, breaking a Russian monopoly that followed the retirement of the U.S. space shuttle fleet in 2011.

The Progress is delivering nearly three metric tons of propellant, oxygen, water, and other supplies to the station.

EXPLOSION OF NASA'S UNMANNED ROCKET ANTARES

NASA rocket explodes

An unmanned Antares rocket exploded seconds after liftoff from a commercial launch pad in Virginia on Tuesday, marking the first accident since NASA turned to private operators to deliver cargo to the International Space Station, but officials said no one was hurt.

The 14-story rocket, built and launched by Orbital Sciences Corp, blasted off its seaside launch pad at the Wallops Flight Facility at 6:22 p.m. EDT carrying a Cygnus cargo ship for the space station. It exploded in a huge fireball moments later.

Orbital Sciences stock was down 12.74 percent after hours, or down $3.87 at $26.50.

The cause of the accident was not immediately known, said NASA mission commentator Dan Huot.

Huot said there were no reports of any personnel in the vicinity of the explosion. An Accomack County Sheriff's spokeswoman added, "As far as we know, all personnel are accounted for and everyone's OK."

Orbital Sciences said in a statement: "We've confirmed that all personnel have been accounted for. We have no injuries in the operation today."

NASA launch control said damage appeared to be limited to the launch facility and rocket. The Antares rocket has been launched successfully on four previous missions.

"This has been a lot of hard work to get to this point," Orbital Sciences Executive Vice President Frank Culbertson told the launch team just before liftoff.

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Launch had been delayed one day after a boat sailed into a restricted safety zone beneath the rocket's intended flight path.

Virginia-based Orbital Sciences is one of two companies hired by NASA to fly cargo to the station after the space shuttles were retired. Tuesday's planned flight was to be the third of eight under the company's $1.9 billion contract with NASA.

The second U.S. supply line to the station is run by privately owned Space Exploration Technologies, or SpaceX, which is preparing for its fourth flight under a separate $1.6 billion NASA contract.

Outfitted with a new, more powerful upper-stage engine, the Antares rocket launched on Tuesday carried a Cygnus spacecraft packed with 5,055 pounds (2,293 kg) of supplies, science experiments and equipment, a 15 percent increase over previous missions.

Cygnus was to loiter in orbit until Nov. 2, then fly itself to the station so astronauts can use a robotic crane to snare the capsule and attach it to a berthing port. The station, a $100 billion research laboratory owned and operated by 15 nations, flies about 260 miles (418 km) above Earth.

In addition to food, supplies and equipment, the Cygnus spacecraft was loaded with more than 1,600 pounds (725 kg) of science experiments, including an investigation to chemically analyze meteors as they burn up in Earth’s atmosphere.

The Cygnus also carried a prototype satellite owned by Redmond, Washington-based startup Planetary Resources Inc., which is developing technology to mine asteroids. The satellite, designated A3, was to be released into space by a commercially owned small spacecraft launcher aboard the station.

Source : Reuters