Physics

A luge athlete at the Olympics.
The big-picture physics is simple – let gravity do its job.
einstein critics
Einstein's theories of relativity faced fierce opposition. One critic claimed he was attempting to subvert the scientific method.
foamy beer
If you want to have foamy beer inside the comfort of your own home, you need to invest in a special nucleated glass.
travel straight line
Is the Universe finite or infinite? Does it go on forever or loop back on itself? Here's what would happen if you traveled forever.
big bang
There are an estimated two trillion galaxies within the observable Universe. Most are already unreachable, and the situation only gets worse.
astrophysics ALMA
If you want to understand what the Universe is, how it began, evolved, and will eventually end, astrophysics is the only way to go.
Standard Model
Particle physics needs a new collider to supersede the Large Hadron Collider. Muons, not electrons or protons, might hold the key.
If you put very fine black powder powder in a confined space it explodes in a cloud of heat, gas and noise.
earth axis move throughout year axial tilt
Even with leap years and long-term planning, our calendar won't be good forever. Here's why, and how to fix it.
hypersonic flight
One day, we could fly across the U.S. in half an hour. A state-of-the-art hypersonic flight testing facility at UTSA could help make that dream a reality.
Geminids
Every December, the Geminid meteor shower reaches its peak. Its 2021 show will be spectacular, but only if you do it right.
theory of everything
No matter how hard we try, we will never reach a final theory that unifies scientific knowledge. The very nature of science doesn't allow it.
davemaoite
Until now, researchers believed davemaoite could never be found on Earth's surface.
spooky action quantum
Many still cling to the idea that we live in a deterministic Universe, despite the nature of quantum physics. Now, the "least spooky" interpretation no longer works.
Why are the rest masses of fundamental particles related like this? When it comes to the nature of matter in the Universe, the Standard Model describes the known elementary particles perfectly […]
More energy means more potential for discovery, but we’re topped out. If your goal is to discover something completely novel, you have to look in a way that no one else […]
Once merely a theoretical curiosity, they might be the key to understanding so much more. Out of all of the known particles — both fundamental and composite — there are a whole slew of properties […]
Whatever’s lurking out there, it isn’t all, or even mostly, normal matter. When it comes to the Universe, it’s only natural to wonder what, exactly, it is that makes everything up. […]
“Hubble’s Law” is only an approximation, and breaks down when we need it most. From anywhere in the Universe, you can choose to look out at any other galaxy that’s present. […]
quantum mechanics
Going to smaller and smaller distance scales reveals more fundamental views of nature, which means if we can understand and describe the smallest scales, we can build our way to […]
Most of us will never run a 4 minute mile. But on a bicycle, almost anyone can do it. As human beings, we often take for granted how our bodies work. […]
50% of stars are in Sun-like ‘singlet’ systems. The planetary nebulae we see just don’t line up. Around 7 billion years from now, our Sun’s life will end. As the Sun […]
Hidden variables aren’t ruled out, but they can’t get rid of quantum weirdness. Ever since the discovery of the bizarre behavior of quantum systems, we’ve been forced to reckon with […]
The dream of zero resistance is closer than you may think. One of the biggest physical problems in modern society is resistance. Not political or social resistance, mind you, but electrical […]
Yes, the Big Bang is real, but what about what came before? If you ask anyone about the origin of some phenomenon that we’ve observed, they’ll usually default to the same […]
When you view your right hand in a mirror, it appears as a left hand. Writing is reversed, as is the direction of any spinning object: clockwise becomes counterclockwise and […]
An almost 40-year-old theory finally has ‘smoking gun’ evidence for it. During most of their lives, stars burn stably, changing imperceptibly. The rotten egg nebula, at lower right (and shown in […]
Is the Universe the same everywhere? Or are there truly ‘special places’ around? For practically all of human history, one assumption about our place in the Universe had long gone unchallenged: […]
Has all this happened before, and will all this happen once again? There are only a few questions, when we ask them, that force us to reckon with the fundamental nature […]
If you’ve ever struggled with the strong force, this explanation is a life-saver. If you ask someone to think about some physical phenomenon that’s responsible for any sort of force […]