One of the great unsolved problems in modern planetary science is written on the surface of Mars. Mars has canyons that were ...

This article was originally published with the title “Unsolved Problems in Metallurgy” in SA Supplements Vol. 61 No. 1589supp (June 1906), p. 25461 doi:10.1038/scientificamerican06161906-25461supp ...

Quirks & Quarks features our ever-popular listener question show, where we find experts to answer your questions. But here are ten mysteries that science has yet to answer.

For over 100 years, two theories have shaped our understanding of the universe: quantum mechanics and Einstein’s general relativity. One explains the tiny world of particles; the other describes ...

What are the gaps in our understanding of climate change? I'm a heart surgeon and heart attack survivor. Never ignore these 6 heart symptoms 6 Things You Should Never Clean With Disinfecting Wipes ...

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in ...

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A sneeze. Ocean currents. Smoke. What do these have in common? They're instances of turbulence: unpredictable, chaotic, uneven fluid flows of ...

Our grandparents paid taxes that support our prosperity today. It's critical that we step up for our kids and their kids.

The deadline is closing in, compiler errors keep flashing across your screen, and the fear of lost GPA points feels like a waking nightmare. In that moment, a s ...