PORTLAND, Ore. — Current solar materials must be chosen to match a specific wavelength of sunlight, but a new hybrid inorganic/organic material could usher in solar cells that absorb all solar ...

Studying the line spectra produced by hot gases and absorbed by cooler gases allows us to identify the elements in stars. When a gas is very hot, it doesn’t emit all wavelengths of light. Hot gases ...

Eating iron along with foods containing certain vitamins and minerals, such as vitamin C, vitamin A, and beta carotene, may help you absorb more iron. Other foods may hinder your iron absorption. Iron ...