It’s that time of the year. The leaves are starting to change colors. This week the National Weather Service in Atlanta ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Our eyes are tuned to only a tiny proportion of the electromagnetic spectrum, but it’s where the Sun is brightest.

How can we measure visible light? The electromagnetic spectrum includes all forms of light energy, known as electromagnetic radiation. (1) Different types of electromagnetic radiation such as radio ...

The short answer to this question: Light bounces off of water droplets and is split into the colors that make up white light. That refracted light is bounced back to our eyes as a rainbow. But let's ...

Scientists may be coming closer to confirming the existence of dark matter - the invisible stuff thought to make up more than ...