Articles on Chemistry

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Light at the blue end of the rainbow is scattered more efficiently than the other colors. shomos uddin/Moment via Getty Images

Why is the sky blue?

The answer has to do with molecules.
PFAS can contaminate the environment – their chemical structure makes them difficult to remove. George Pachantouris/Moment via Getty Images

We developed a way to use light to dismantle PFAS ‘forever chemicals’ – long‑lasting environmental pollutants

PFAS are made up of a chain of incredibly strong carbon-fluorine bonds, which make them difficult to break down.
How did early cells keep themselves distinct while allowing for some amount of exchange? UChicago Pritzker School of Molecular Engineering/Peter Allen, Second Bay Studios

Rain may have helped form the first cells, kick‑starting life as we know it

The earliest cells likely didn’t have membranes to separate and protect their components and chemistry away from a harsh surrounding environment. But they may have made do with rain.

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