| An experiment mimicking our early solar system reveals that the sugar ribose, the 'R' in 'RNA,' can arise in the icy grains of comets. |
The origin of life on Earth has been a matter of intense debate throughout human history. Even today, scientists don’t know whether the molecular building blocks of life were created on Earth or whether they were brought here by comets and meteorites. This is obviously hugely important – if they were delivered to Earth then it seems plausible that they may have been transported to other planets, too. [...]
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