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A cyberattack has suspended computer systems of a large telescope with the world's leading performance in Chile, hampering observation by international astronomers for more than one month.

Japan is one of the operators of the huge radio telescope known as ALMA. It has contributed about a quarter of the overall facility plan. The National Astronomical Observatory of Japan says ALMA suffered a cyberattack on its system on October 29, leaving astronomical observations suspended even now.

The farthest individual star to ever have been photographed, whose light has taken 9 billion years to reach Earth, was captured using cosmic lenses in an international research project by institutions including the University of Tokyo.

The achievement was announced in the digital edition of Nature Astronomy, a British science journal, on April 3.