Speed matters. When an X-ray photon excites an atom or ion, making a core electron jump onto a higher energy level, a ...

In a study published in Physical Review Letters, physicists have demonstrated that black holes satisfy the third law of ...

The James Webb telescope may have detected the universe's earliest and most distant known black hole at the heart of galaxy ...

Creating a data table beforehand will help you organize your observations and measurements. For example, if you are testing the reactivity of metals with acid, your data table might include columns ...

The editorial board is a group of opinion journalists whose views are informed by expertise, research, debate and certain longstanding values. It is separate from the newsroom. You do not have to care ...

The universe may not only be geometry and energy—but also memory. And in that memory, every moment of cosmic history may still be written. For more than a century, physics has been built on two great ...

For years, Dan Harrison’s home in the western hills of Los Angeles would lose power when it was hot, when it rained or when it was very cold — sometimes the outages would stretch longer than 10 hours.

Florian Neukart does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Dark energy—the term used to describe whatever is causing the universe to expand at an increasing rate—is one of the universe’s greatest mysteries. The most widely accepted theory currently suggests ...

The lights are off, the house is quiet and nothing seems to be running. But electricity is silently flowing through the plugs in your home. This hidden drain is known as phantom energy. Also called ...

In the last decade, the U.S. electric power sector turned away from coal to embrace wind turbines and solar panels, two energy generating sources that require little ...