Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Tuesday, 18 October 2011

China successfully launches "Heavenly Palace" space craft


The Tiangong 1, or "Heavenly Palace," blasted off from a remote site in the Gobi Desert at 9:16 pm (1316 GMT), adding a high-tech sheen to China's National Day celebrations on October 1.
Premier Wen Jiabao watched as the small, unmanned "space lab" and the Long March rocket that heaved it skyward from a pad at Jiuquan in northwest Gansu province, lifted off under clear skies, in images shown live on state television.
It is the latest show of China's growing prowess in space, and comes while budget restraints and shifting priorities have held back U.S. manned space launches.
"Its name ... speaks for a dream home the Chinese have long envisioned in the sky. In Chinese folklore, a heavenly palace often refers to the place in outer space where deities reside," the official Xinhua news agency said.
The big test comes weeks after its launch, when the eight tonne craft attempts to join up with an unmanned Shenzhou 8 spacecraft that China plans to launch.
Space docking tests conducted with the Tiangong 1 will provide experience for the building of a permanent manned space station around 2020, mission spokeswoman Wu Ping said.
China's government will hope to set a successful Tiangong mission alongside other trophies of its growing technological prowess, including the launch of a trial aircraft carrier.
And the launch, just before China's National Day holiday, was accompanied by an outpouring of proud support for the country's technological achievements.
"I feel great pride in being Chinese today. This is another great step forward for China in space," wrote Shi Zhongshan on the popular Twitter-like microblogging site Sina Weibo.
However, some wondered why all the fuss considering recent problems on another engineering feat China had lauded, the rapid development of its rail system.
In July, 40 people died in a collision on a high-speed rail line in eastern China, and this week more than 200 people were injured when two subway trains ran into each other in Shanghai.
"I'd prefer more attention be paid to the high-speed train and Shanghai subway crashes than to Tiangong 1. The later is related to face, but the former is to do with our lives," wrote "Weixiao Xiaoran," also on Weibo.
Engineers had been watching launch preparations nervously, after another Long March rocket malfunctioned and failed to send an experimental satellite into orbit last month.
Beijing is still far from catching up with space superpowers. The Tiangong launch is a trial step in Beijing's plans to eventually establish its own space station.
Russia, the United States and other countries jointly operate the International Space Station, to which China does not belong.
But the United States will not test a new rocket to take people into space until 2017, and Russia has said manned missions are no longer a priority for its space program, which has struggled with delays and glitches.
Earlier this month, NASA unveiled plans for a deep-space rocket to carry astronauts to the moon and Mars. President Barack Obama has called for a human expedition to an asteroid by 2025 and a journey to Mars in the 2030s.
China launched its second moon orbiter last year after it became only the third country to send its astronauts walking in space outside their orbiting craft in 2008.
It plans an unmanned moon landing and deployment of a moon rover in 2012, and the retrieval of lunar soil and stone samples around 2017. Scientists have talked about the possibility of sending a man to the moon after 2020.
China is also jostling with neighbors Japan and India for a bigger presence in space, but its plans have faced international wariness. Beijing says its aims are peaceful, and military involvement natural given the enormity of the undertaking.
"The military enjoys unique advantages in organizing and coordinating such large-scale activities, and its involvement in aerospace missions is an international practice," Defense Ministry spokesman Geng Yansheng said this week.

NASA backed space taxi to fly in test next summer


Sierra Nevada Corp's "Dream Chaser" space plane, which resembles a miniature space shuttle, is one of four space taxis being developed by private industry with backing from the U.S. government.
For the unmanned test flight, it will be carried into the skies by WhiteKnightTwo, the carrier aircraft for the commercial suborbital passenger ship SpaceShipTwo, backed by Virgin Galactic, a U.S. company owned by Richard Branson's London-based Virgin Group.
The test flight was added after privately held Sierra Nevada got a $25.6-million boost to its existing $80 million contract with NASA.
The test flight will take place from either Edwards Air Force Base in California's Mojave Desert, or from the White Sands Missile Range in New Mexico, Ed Mango, manager of NASA's Commercial Crew Program, said at a community briefing at the Kennedy Space Center in Florida.
With the retirement of the space shuttles this summer, NASA is now dependent on Russia to fly astronauts to the space station, at a cost of more than $50 million per person.
The agency hopes to turn over crew transportation services to one or more commercial firms before the end of 2016, Mango said.
In addition to Sierra Nevada, NASA is funding spaceship development work at Boeing Co, Space Exploration Technologies, and Blue Origin, a start-up firm owned by Amazon founder Jeff Bezos.
"Having only one way to get crew to the station is a limitation," NASA astronaut Mike Fossum, who is currently living aboard the outpost, said during an in-flight interview last week.
The station, a $100 billion project of 16 nations, was finished this year after more than a decade of construction 225 miles above the planet. The outpost, which is about the size of a five-bedroom house, supports a variety of scientific research and technology demonstrations.
Along with helping to develop commercial space taxis, NASA is working on a heavy-lift rocket and capsule to fly astronauts and cargo to asteroids, the moon, Mars and other destinations beyond the space station's orbit.
Drawing heavily on equipment originally built for predecessor programs, including the space shuttle and the canceled Constellation moon exploration initiative, the new rocket, called the Space Launch System or SLS, is scheduled to debut in 2017.
That unmanned test flight would be followed in 2021 by a trial run with astronauts, said Kennedy Space Center director Bob Cabana.