What Does “Statistically Significant” Really Mean?
Learn what statistical significance and p-values do—and do not—tell you about effect size, uncertainty, practical importance and scientific evidence.
Sep 12, 2026 • 6 min readClear, evidence-led stories about the discoveries changing how we understand reality.
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 →New stories, explanations and research from Science.
Learn what statistical significance and p-values do—and do not—tell you about effect size, uncertainty, practical importance and scientific evidence.
Sep 12, 2026 • 6 min read
Discover how scientific consensus emerges from converging evidence, expert scrutiny and replication—and why responsible consensus can change.
Sep 12, 2026 • 6 min read
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
Understand correlation, causation, confounding and reverse causality with clear examples and a practical checklist for evaluating claims.
Sep 12, 2026 • 7 min read
Learn what scientific peer review checks, how journal review works, what reviewers can miss and why peer-reviewed does not mean proven.
Sep 12, 2026 • 7 min read
Learn why speed and gravity change elapsed time, how atomic clocks test relativity and why GPS depends on Einstein’s physics.
Sep 12, 2026 • 12 min read
Learn what statistical significance and p-values do—and do not—tell you about effect size, uncertainty, practical importance and scientific evidence.
Sep 12, 2026 • 6 min read
Discover how scientific consensus emerges from converging evidence, expert scrutiny and replication—and why responsible consensus can change.
Sep 12, 2026 • 6 min read
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
Understand correlation, causation, confounding and reverse causality with clear examples and a practical checklist for evaluating claims.
Sep 12, 2026 • 7 min readOne remarkable idea at a time—nature, science, history and beyond.