Ask HN: What are the greatest scientific discoveries within the last 20 years?

3 points by virjog 7y ago ↗ HN

What are the greatest scientific discoveries/accomplishments within the last 20 years that have propelled humanity (and our understanding of it) forward?

If necessary, can extend this to the past 50 years as well.

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mtmail 7y ago ↗

A bit older but seem relevant "Ask HN: What are the greatest discoveries in the last few years?" https://news.ycombinator.com/item?id=9731111