Light normally spreads out rapidly in all directions; a laser coheres the light in a narrow beam. The key to producing this ...

Voyager 1, NASA’s deep-space probe, could soon become the first spacecraft to reach a historic milestone. In November 2026, the probe will be one light-day from Earth. Launched in 1977, Voyager 1 is ...

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 ...

Scientists have unveiled a groundbreaking discovery: a material capable of bending light in unprecedented ways. This advancement opens up possibilities for innovations in optics, including superlenses ...

In 1845, Michael Faraday discovered what’s known today as the Faraday Effect—which describes how light and electromagnetism are related. A new study revealed that the magnetic component of light ...

This article was originally featured on The Conversation. For most of human history, the stars blazed in an otherwise dark night sky. But starting around the Industrial Revolution, as artificial light ...

The universe has a speed limit, and it's the speed of light. Nothing can travel faster than light — not even our best spacecraft — according to the laws of physics. So, what is the speed of light?

Relax to the sound of the ocean and discover the science behind sunsets. While a sunset may seem like any other ordinary thing, a number of physical elements had to come together, in just the right ...