The night sky is full of planets, satellites, and cosmic objects we can see with our eyes and telescopes. In between all that material there’s a huge amount of invisible matter and the vast majority of it is called plasma. Follow along...

Global warning is probably the biggest threat facing humanity. If all else fails, could climate-controlling technology be the answer?

A flash of lightning, and a rumble of thunder. But what exactly are these spectacular occurrences? In 1752, Benjamin Franklin discovered that lightning was caused by powerful electrical discharges in clouds. He wasn’t the first person to...

When Earth was just a baby, meteors and asteroids rained down, delivering all sorts of chemicals to our developing planet. These small objects could have delivered the chemicals needed to spark life on Earth for the first time.

In this video, we explore the concept of electromagnetic energy and its role in lighting up a bulb. This video highlights the everyday presence and importance of electromagnetic energy in our lives, from powering our devices to the...

Ships leave trails of vapor, called ship tracks, in humid ocean air. You see them here, on satellite.

The video explains collision theory and activation energy in chemistry. It demonstrates the concept of how reacting particles need to collide with sufficient energy to break reactant bonds and form new products. The video also explains...

Tests by a Swiss laboratory have found significant levels of Polonium on the clothing of late Palestinian leader Yasser Arafat. The test results will raise doubts about the 2004 death of Arafat, in which poisoning was initially ruled...

This video is a lecture on the particle model and density. It explains the three states that matter can be in - solid, liquid, and gas - and their particle structures. The video describes how these structures affect their properties,...

Review of the Rotational Dynamics topics covered in the AP Physics 1 curriculum.

MOT 1946: ANIMATED GRAPHICS: Example of Particle Accelerator (cyclotron) showing rapid bombardment of atom. Scientist in lab coat working electric controls. ANIMATED GRAPHICS: Slow particles being deflected off nucleus faster particles...

Is it a coincidence? Or is something else at play here?

The European Space Agency’s Solar Orbiter has been given the rare opportunity to conduct some “bonus science” in a serendipitous rendezvous with the tails of the comet ATLAS during the next few days, the space agency detailed in an...

Scientists at the CERN research center believe they have found the so-called "God Particle," the Higgs boson, so named because it gives other subatomic particle their mass. The Higgs boson has been theorized for decades but never...

Physical Science for Kids is the fun way to learn important facts about physical science and get ready for tests. Take a fascinating journey to the Super Science Station to learn about staying safe in the lab.

New research shows that the great dinosaur die-off was caused by airborne particles ejected directly from the crater made by the Chicxulub meteor

This video is an introduction to the Atoms series. This series helps to make the abstract concept of atoms become understandable. Many of the major scientific breakthroughs contributing to our understanding of atoms are highlighted....

With me today is Dr. Linda Spilker from NASA's Jet Propulsion Laboratory. She's the project scientist for our Cassini Mission, which as everyone knows, had a recent spectacular finale at Saturn.

This is a lecture video explaining the mathematical relationship between the pressure and volume of a gas when it is at a constant temperature and has a fixed mass. The video discusses how the pressure and volume of a gas are inversely...

The video is a lecture on the natures and properties of nuclear radiations. The speaker discusses the three types of ionizing radiation: alpha particles, beta particles, and gamma rays. They explain the ionizing and penetrating abilities...

Paul Edmiston demonstrates the effectiveness of his Osorb water purifier by drinking from a slurry of water and engine-enhancing fuel additives. Osorb is a powder made from tiny fragments of chemically modified glass, and it works like...

A block is sliding down a circular path and colliding with a spring. What is the maximum compression of the spring?

Monitoring water quality is vital to make sure dangerous bacteria doesn't creep into our drinking water or overcome sewage treatment plants. With support from the National Science Foundation, engineers at the Monterey Bay Aquarium...

This video examines the forces creating weather. The way in which atmospheric conditions and patterns cause changes in the weather is explained. Instruction on how to use a weather map and how we can predict tomorrow's weather is...