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BEIJING, Oct. 26 (Xinhuanet) -- The question, why the first documented supernova was super-sized and grew so fast, has puzzled astronomers for centuries. Now it is solved by US researchers.The supernova, an exploded star, was observed in 185 A.D. and documented as a mysterious "guest star" by Chinese astronomers. It was visible for eight months.Scientists later found the supernova, 8,000 light years away, was a bigger-than-expected supernova remnant. BBC reported that if the infrared light it emits could be seen by human eyes, it would appear to be as large as the full Moon in the sky.Through observations in space telescopes, researchers of a latest study revealed that the explosion took place in a cavity in space, which allowed the star's remains to travel out much faster and farther. The study was published online in the Astrophysical Journal Monday.The supernova was "two to three times bigger than we would expect for a supernova that was witnessed exploding nearly 2,000 years ago. Now, we've been able to finally pinpoint the cause," stated Brian Williams, lead author of the study and an astronomer at North Carolina State University in Raleigh.

NANJING, Jan. 7 (Xinhua) -- Police authorities in China's eastern Jiangsu Province on Sunday intensified their search for the suspect in an armed robbery in the province.Police have increased patrol and initiated a blanket search for the male suspect, who shot and robbed a man in front of a bank in Nanjing, the provincial capital, on Friday, the provincial public security bureau said in a statement.In Nanjing, special armed police and police cars have blocked major roads, with many others searching in public places. Two helicopters are used to facilitate the search.The provincial police authorities also offered a reward of 100,000 yuan (15,850 U.S. dollars) for information leading to the arrest of the man believed to be in his 40s.The suspect shot a man who had just finished withdrawing 200,000 yuan in front of a bank on Nanjing's Dongmen Street at 9:50 a.m. Friday. The robber then took the money and hopped in a car that sped away from the scene of the crime, Pei Jun, deputy chief of the Nanjing public security bureau, said Friday.Pei said the suspect is believed to have used a gun to kill six people and injure another two in six robberies that took place in Changsha, capital of Hunan Province, and Chongqing municipality since 2004.Firearm possession is illegal in China.

HOUSTON, Dec. 13 (Xinhua) -- NASA Johnson Space Center on Tuesday formed a partnership with Texas's largest tech incubator and accelerator, the Houston Technology Center (HTC), to help reach its goals of increasing private and public collaboration.The strategic partnership is aimed at expanding HTC's mission of accelerating the growth of emerging technology companies in the Houston region to support NASA's goals of increasing private and public cooperation, the parties said in news release."We are excited to partner with NASA Johnson Space Center in an effort to foster entrepreneurial opportunities to the transitioning workforce in the Bay Area," said Walter Ulrich, CEO of Houston Technology Center."The combination of NASA's incredible technologies and HTC's powerful entrepreneurial resources presents the potential for immense economic development," he said.HTC is committed to growing a sustainable entrepreneurial network that will benefit the surrounding the space center for years to come including its future missions beyond low earth orbit. HTC will seed the future workforce through its close ties with the major universities and with science, technology, engineering, math programs and objectives, according to the news release.NASA and the Houston Technology Center began their partnership earlier this year when they originally formed plans to open an office to help former contractors near the Johnson Space Center.With the signing of the Space Act Agreement on Tuesday, the two sides move forward with retraining contractors and helping them get new jobs in the Houston area.An estimated 4,000 people are expected to lose their jobs when the space shuttle program is completed.

BEIJING, Otc. 26 (Xinhuanet) -- The more coffee people consume, the less likely they develop the most common form of skin cancer, a new study suggests, according to media reports Tuesday."Our study indicates that coffee consumption may be an important option to help prevent basal cell carcinoma," stated Fengju Song, lead researcher of the study and a postdoctoral fellow in the department of dermatology at Brigham and Women's Hospital and Harvard Medical School in Boston.Basal cell carcinoma (BCC) is reported to be a slow-growing form of skin cancer that accounts for 75 percent of all skin cancers. It is the most common type of skin cancer, with nearly one million new cases diagnosed each year in the United States.Although BCC is hardly fatal, if ignored, there may be consequences of treatment, including disfigurement, according to a USA Today report.The US researchers found that women who drank over three cups of coffee a day were 20 percent less likely to develop BCC, whereas the risk of having BCC for men who consumed more than three cups per day lowered 9 percent.To get the findings, the researchers analysed data from almost113,000 people between1984-2008 and over 23,000 were diagnosed with BCC.The researchers agreed that caffeinated coffee was associated with BCC risk reduction, but decaffeinated coffee did not have such effect.According to a Fox News report, besides cutting the risk of skin cancer, coffee consumption has also been found to lower the risk of breast cancer and prostate cancer and cancer overall."To the best of our knowledge, coffee consumption is a healthy habit," said Fengju Song, cited by the Fox News.The findings were presented Monday at the American Association for Cancer Research International Conference in Boston and not yet published in a scientific journal.

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