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EntertainmentRepeatedly appeared fireballs in America
The image of 4 large fireballs and strong light emitted in the sky of many American states, is considered one of the rare astronomical events.Video: A fire bridge appeared in the sky of the United States
Big fireball image and strong light emission are observed in the sky of San Antonio, Texas.
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Can carp live 10 years in a tank without feeding?
Why do Italy and Switzerland have to redraw the border?
Japanese bullet train accident-free for 60 years
The world's most crowded apartment building: Can accommodate up to 30,000 people, the view inside is overwhelming
World's oldest wine jar contains cremated human bones
America catches strange signal from 1.3 billion light years away from Earth
Two black holes closest to Earth discovered, of a kind never seen before
Solar sails help spacecraft reach Mars in 26 days
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