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Research Breakthroughs

The latest stories, clear explanations and essential discoveries from Research Breakthroughs.

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How Scientific Discovery Works: Evidence, Testing and Uncertainty

Science advances by turning questions into testable ideas, confronting them with evidence and revising what we think we know. Here is how that process really works—and why uncertainty is a strength, not a flaw.

Sep 12, 2026 8 min readRead the discovery →
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New stories, explanations and research from Research Breakthroughs.

Two USGS scientists discussing incoming research data in a shipboard computer laboratory
Research Breakthroughs

What Is a Scientific Preprint?

Learn what preprints are, why scientists use them, how they differ from peer-reviewed papers and how to evaluate or cite preliminary research.

Sep 12, 2026 6 min read