Sunlight reaching Earth’s surface isn’t as stable as we might think—it’s actually fluctuated dramatically over the decades ...

"The new model can account for both structure formation and stability, and the key observational properties of the expansion of the universe at large." ...

The sun may rise every morning, but the amount of sunlight reaching Earth's surface can substantially vary over decades, ...

"Just as blue sunlight scatters in the Earth's atmosphere and makes the sun look slightly less blue, light from a strong blue ...

There are roof shapes and ratios that maximize heat retainment and energy efficiency and, interestingly, ancient Italian architects and builders seemed to know it, too.

A company working to mass produce portable nuclear microreactors said its has accepted its selection by the U.S. Dept. of ...