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World’s longest suspension bridge – level 3
19-05-2022 07:00
In the Czech Republic, the world’s longest pedestrian suspension...Black hole in our galaxy – level 1
18-05-2022 15:00
Scientists show the first picture of the black hole...Black hole in our galaxy – level 2
18-05-2022 15:00
Scientists showed the first image of the black hole...Black hole in our galaxy – level 3
18-05-2022 15:00
Eight synchronized radio telescopes worked together around the world...