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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 did the ancient Babylonian civilization perish? Was it because they considered 'that thing' a daily meal?
Just discovered a 72km 'tear in the Earth', the world's second largest country is in fear of a tsunami attack
Top 7 facts about the hottest place in the world, where you can fry eggs at outdoor temperature
The Qing Dynasty collapsed, what surname did 20,000 royal descendants change to to integrate into the new era?
After 389 days in the Arctic, costing more than $160 million, hundreds of scientists brought back bad news: What was it?
How long does it take to fall in love with someone?
How much silver has ever been discovered in the world?
How does an atomic bomb work?
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