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EntertainmentDetecting new gravitational waves from two colliding black holes
German scientists continue to discover that new gravitational signals stem from the merger of two black holes 3 billion light-years away.Ancient stars reveal the time when gravitational waves land on Earth
For the first time astronomers discovered gravitational waves that bounced back from a collision between two black holes more than a billion years ago.
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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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