In a surprise move, the City Democratic Central Committee last week voted to endorse Alderwoman Cara Spencer against incumbent Mayor Tishaura O. Jones in the April mayoral election. It was an unusual ...

A novel UV-resistant flexible perovskite solar cell integrates a CPI substrate and nanostructured TLS, enhancing efficiency ...

Over the years, Pennsylvania’s been a hub for eye-catching license plates honoring everything from river otters to D.A.R.E to Quaker friendliness.

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