Physical science is the study of the physical world around you. Learn about everything from electricity to magnetism in this section.
Can you really shatter a glass with a high note?
Watch: The Chemistry of Sparklers Explained in Slow-motion Video
Party Trick Breakdown: Why Do Balloons Stick to Hair?
Why DNA Evidence Can Be Unreliable
Who was the first scientist?
The Chinese Are a Magnet Superpower
Concept of Zero Is Centuries Older Than Assumed, Analysis Suggests
Scientists Have Devised a Revolutionary Way to Redefine the Kilogram
How the Deep Underground Neutrino Experiment Will Work
Why Do We Get So Much Pleasure From Symmetry?
Why do we love looking at a perfectly stacked display of soup cans or six flower petals around a stamen? Our brains seem wired for it -- but why?
By Dave Roos Nov 6, 2017
A new analysis of the ancient Indian Bakhshali manuscript suggests the numerical symbol zero, as we use it today, may be centuries older than previously believed.
By Patrick J. Kiger Sep 26, 2017
Scientists have figured out why some objects stick more to each other. And it's a very cool trick.
By Alia Hoyt Sep 20, 2017
If you're one of those people who chooses invisibility as your desired superpower, it could mean you have a dark side.
By Alia Hoyt Sep 6, 2017
A reinterpretation of an ancient Babylonian tablet shows that trigonometry might be 1,000 years older than thought. But there's some disagreement.
By Jesslyn Shields Sep 5, 2017
The seriously ambitious experiment aims to understand the mysterious neutrino and maybe even figure out why matter won out over antimatter during the Big Bang.
By Ian O'Neill Aug 25, 2017
Researchers have come up with the most precise determination of Planck's constant ever, making it possible to reframe the idea of what a kilogram even is.
By Patrick J. Kiger Jul 21, 2017
Stanford University researchers for have for the first time observed the formation of a super-dense frozen water crystals called ice VII, which don't naturally exist on Earth.
By Patrick J. Kiger Jul 19, 2017
Two physicists have worked out a mathematical model for time travel. Now we just need some heretofore unseen exotic matter to get traveling.
By Ian O'Neill May 10, 2017
New data shows extremely high radiation levels inside one of the reactor containment vessels. Are post-tsunami radiation levels spiking? Not so fast …
By Patrick J. Kiger Feb 10, 2017
DNA found at a crime scene doesn't automatically mean the person matching it is guilty, say researchers of new forensics guide.
By Dave Roos Feb 8, 2017
Light-reflective glasses promise to foil CCTV cameras. Here's how.
By Michelle Adelman Dec 26, 2016
Science is still working out exactly what makes frozen water so slippery, but there are a few intriguing theories.
By Laurie L. Dove Nov 30, 2016
The race is on to build some seriously strong magnetic fields that are capable of doing amazing thing, like literally mapping neurons.
By Kate Kershner Nov 18, 2016
Electronics giant Samsung reportedly has patented 3-D TV tech that projects a hologram so that viewers don't have to wear special glasses.
By Patrick J. Kiger Nov 17, 2016
Helicopters, ceiling fans, even tricked-out car tire rims: Sometimes they can even look like they're going backward, or bending.
By Laurie L. Dove Nov 9, 2016
A wall of Lego-like bricks creates the illusion of hyper-vivid, three-dimensional audio, altering sound waves much like a hologram does visible light.
By Patrick J. Kiger Oct 21, 2016
It's a young lady! It's an old woman! It's a blue dress! No, it's gold! Why are we fooled by optical illusions and what do they tell us about how the brain works?
By Meisa Salaita
Whereas the majority of sighted people see a world with just a million colors, or fewer if you're color-blind.
By Kate Kershner Jul 26, 2016
There's some serious science behind the sparkle, with different metals, compounds and other elements creating the fun firework.
By Christopher Hassiotis Jul 4, 2016
Dangerous and unpredictable, rogue waves in the ocean seem to more closely resemble light waves than water waves.
By Jesslyn Shields Jun 23, 2016
In 1957, Hugh Everett first wrote about the multiverse — different realms where every choice spawns a separate universe in which another version of ourselves does something different. It sounds crazy, but here are some reasons it might be true.
By Patrick J. Kiger
YouTube channel Let's Melt This has become an internet sensation. Why are we so mesmerized by videos of everyday objects undergoing phase change?
By Christopher Hassiotis May 26, 2016
How effective is fighting a wildfire with controlled fire?
By Oisin Curran
The site of the largest nuclear accident in history is now home to diverse wildlife. Can studying the animals help researchers discover how radiation affects us all?
By Lauren Vogelbaum Apr 20, 2016
The Terrific, The Tasty and The Tense: Our Best Stories You Might Have Missed This Week
The Monster Star That Refuses to Die: Could Antimatter Be Fueling Its Supernovas?
How Does the U.S. Senate Expel a Senator?