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EntertainmentAstronaut Bruce McCandless II - The first person to fly freely in space
40 years ago, Bruce McCandless II performed the first headless spacewalk, creating a milestone in the history of space exploration.Beautiful photo of Earth seen from the space of 1960-1980
Contemplate the beauty of the Earth through astronomical photos taken decades ago.
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Why have there never been any bird droppings on the roofs of the Forbidden City in the past 600 years?
After being continuously heated for 270 days at over 1,000 degrees Celsius, the GRX-810 material remained unharmed: What is the secret?
The loneliest robot in the universe - 'real-life WALL-E': 15 years wandering in endless space.
Debunking Space Myths: Questions Surrounding Nebulae!
14 of the most powerful armies in ancient world history.
12 of the most terrifying venomous spiders to humans.
10 harmful effects of eating dog meat that not everyone knows about.
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