常速英语

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3D printing is fairly new to Palaeontology. It allows scientists to print their own replicas of fossils based on X-ray scans of the originals. One of the most famous fossils to be scanned is Lucy: ...

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A common technique in genetic engineering is to insert a new gene into a loop of bacterial DNA called a plasmid. The molecular tool used to cut DNA is a restriction enzyme, such as Eco...

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It's hard to get to space. As much as we all wish there were an easy, and affordable way to see our planet floating in the dark. Right now, the only way is to become an astronaut or a billionare. ...

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In the last few decades, astronomers have discovered thousands of new worlds: exoplanets of all shapes and sizes, orbiting distant stars. But it seems that there was an undiscovered planet hidden...

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The millions of bases, which make up the human genome, are organized into structures called chromosomes. These are arranged into 22 matching pairs, plus one pair of sex chromosomes, con...

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In the early 1930s there was a territorial dispute between Denmark and Norway over who should have the right to East Greenland. Both Denmark and Norway, they made a lot of aerial mapping. They t...

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As represented by this huge stack of paper, the human genome contains more than 3 billion nucleotides or DNA letters. The first stage of the public human genome project focused on ident...

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What is the true nature of the universe? To answer this question, humans come up with stories to describe the world. We test our stories and learn what to keep and what to throw away. But the more...