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Entertainment'Smiley Face' Could Solve Mars' Big Mystery
The European Space Agency's Mars Exploration Rover captured an interesting image on Mars, with a circular shape resembling a smiling face.Tracing the icons
Let's discover the origin and meaning of the icons!'Smilies' form from Venus, Jupiter and the Moon
Venus and Jupiter are eyes, while the Moon is as weak as a smiling, shaping mouth
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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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