Q&A: How did we outpace the big bang?
The Naked Scientists Podcast
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Is There a Drug That Hits Pain Where It Hurts?
There's an estimated one followed by 31 zeros, individual viruses on Earth. If you lay all of the viruses on Earth end to end, they would stretch for 100 million light years. The vast majority of viruses are viruses that infect bacteria. These play an enormously important role in the way the whole ecosystem works.
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