天国的阶梯

Chinese-made infrared telescope with domestic detectors achieves astronomical imaging, reducing foreign reliance_我的网站

一 |     The Nobel Foundation on Saturday withdrew its invitation for representatives of Russia, Belarus and Iran to attend this year's Nobel Prize award ceremonies after the decision announced a day earlier "provoked strong reactions."Several Swedish lawmakers said Friday they would boycott this year's Nobel Prize award ceremonies in the Swedish capital, Stockholm, after the private foundation that administers the prestigious awards changed its position from a year earlier and invited representatives of the three countries to attend, saying it "promotes opportunities to convey the important messages of the Nobel Prize to everyone."Some of the lawmakers cited Russia's war on Ukraine and the crackdown on human rights in Iran as reasons for their boycott. Belarusian opposition figure Sviatlana Tsikhanouskaya on Friday called on the Swedish Nobel Foundation and the Norwegian Nobel Committee not to invite representatives of Belarusian President Alexander Lukashenko's "illegitimate regime to any events."

     On Saturday, she welcomed the Nobel Foundation's decision. She told The Associated Press that it was "a clear sign of solidarity with the Belarusian and Ukrainian peoples.""This is how you show your commitment to the principles and values of Nobel," Tsikhanouskaya said.                 Ukrainian Foreign Ministry spokesperson Oleh Nikolenko called the decision a "victory for humanism.""Thank you to everyone who demanded that justice be restored," he wrote on Facebook, adding that "a similar decision" should be made regarding the attendance of Russian and Belarusian ambassadors at celebrations taking place in Norway following the ceremony in Sweden.Swedish Prime Minister Ulf Kristersson, who said Friday he wouldn't have allowed the three countries to participate in the award ceremonies, was also happy with the decision. He posted on social media platform X, formerly known as Twitter, that "the many and strong reactions show that the whole of Sweden unambiguously stand on Ukraine's side against Russia's appalling war of aggression."The foundation said Saturday it recognized "the strong reactions in Sweden, which completely overshadowed this message" and therefore it had decided not to invite the ambassadors of Russia, Belarus and Iran to the award ceremony in Stockholm.                      However, it said that it would follow its usual practice and invite all ambassadors to the ceremony in the Norwegian capital, Oslo, where the Nobel Peace Prize is awarded.Saturday's announcement was widely praised in Sweden by politicians. Even the Swedish Royal House reacted with spokeswoman Margareta Thorgren saying, as quoted by newspaper Aftonbladet, that "we see the change in the decision as positive". She added that King Carl XVI Gustaf was planning to hand out this year's Nobel awards at ceremonies in Stockholm "as before."This year's Nobel prize winners will be announced in early October. The laureates are then invited to receive their awards at glittering prize ceremonies on Dec. 10, the anniversary of award founder Alfred Nobel's death in 1896.                                 

In:    
• Belarus
    
• Nobel Peace Prize
    
• Iran
    
• Russia
    

。         Ground-based infrared telescope installed at Saishiteng Mountain, Lenghu township, Northwest China's Qinghai Province Photo: Screenshot from gdstc.gd.gov.cn
Chinese scientists on Wednesday released the first complete set of observational images captured by China's new-generation ground-based infrared telescope, filling a gap in the country's near-infrared astronomical observation capabilities and reducing reliance on foreign infrared detector technology, China News Service reported on Wednesday. 
The 80-centimeter near-infrared telescope was installed at Saishiteng Mountain, Lenghu township, Northwest China's Qinghai Province in October 2024. Jointly developed by Sun Yat-sen University and several partner institutions, the telescope is China's first to achieve scientific imaging in the 1.2-micrometer J band and 2.2-micrometer K band using domestically developed scientific-grade InGaAs and HgCdTe detectors. 
The telescope enables unattended remote operations, and can lock onto any target in the sky within 15 seconds. Its infrared capability allows it to see through interstellar dust, enabling it to observe cold and distant celestial objects that are difficult for optical telescopes to capture. 
According to Ma Bin, a professor at the School of Physics and Astronomy, Sun Yat-sen University who led the research team that released the infrared telescope's observational images, all three of the telescope's core astronomical observation capabilities were fully validated during operation. 
It rapidly responded to and tracked multiple gamma-ray bursts and supernova events, recording the evolution of their infrared afterglows following the explosions. It continuously monitored brown dwarfs, precisely capturing periodic variations in their atmospheric brightness. Using image-stacking technology, it also observed active galaxies billions of light-years away. 
Since its deployment in Lenghu, the system has supported infrared observations for more than 10 Chinese research institutions, accumulating valuable experience for the construction of future large-scale infrared telescopes. 
Lenghu township, where the world-class astronomical observation base takes shape, is hailed as "the most Mars-like place on the Earth." The astronomical observation base was said to be an astronomical observation site comparable to the top ones in the world by a Nature article published on August 18, 2021, according to the Chinese Academy of Sciences. 
Once prospered in 1950s due to its rich petroleum resources, Lenghu is now becoming a premier astronomical observation site and Mars-themed tourist destination, according to Xinhua News Agency.
Global Times
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