"Why are there so many songs about rainbows?" sings Kermit the Frog in a song (about rainbows) called "Rainbow Connection" from 1979's "The Muppet Movie." And it's not just songs that feature rainbows ...

In times long past, the mystic Guardians of the Universe learned how to tap the power of the emotional spectrum. They forged ...

Your skin needs a daily dose of protection, even when it’s cloudy out, to prevent premature aging and skin cancer. Luckily, ...

The efficient conversion of solar energy into storable forms of chemical energy is the dream of many engineers. Nature found ...