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Physics
One of the 20th century's most famous, influential, and successful physicists is lauded the world over. But Feynman is no hero to me.
The Universe changes remarkably over time, with some entities surviving and others simply decaying away. Is this cosmic evolution at work?
Watching for changes in the Red Planet’s orbit over time could be new way to detect passing dark matter.
Time is relative, not absolute, as gravity and motion both cause time to dilate. Your head and feet, therefore, don't age at the same rate.
LHC scientists just showed that spooky quantum entanglement applies to the highest-energy, shortest-lived particles of all: top quarks.
Do we actually live in a deterministic Universe, despite quantum physics? An alternative, non-spooky interpretation has now been ruled out.
Taught in every introductory physics class for centuries, the parabola is only an imperfect approximation for the true path of a projectile.
Inflation, dark matter, and string theory are all proposed extensions to the prior consensus picture. But what does the evidence say?
Here on Earth, we commonly use terms like weight (in pounds) and mass (in kilograms) as though they're interchangeable. They're not.
The original principle of relativity, proposed by Galileo way back in the early 1600s, remains true in its unchanged form even today.
The largest particle accelerator and collider ever built is the Large Hadron Collider at CERN. Why not go much, much bigger?
More than any other equation in physics, E = mc² is recognizable and profound. But what do we actually learn about reality from it?
Today, the Large Hadron Collider is the most powerful particle physics experiment in history. What would a new, successor collider teach us?
Dark matter's hallmark is that it gravitates, but shows no sign of interacting under any other force. Does that mean we'll never detect it?
A longstanding mismatch between theory and experiment motivated an exquisite muon measurement. At last, a theoretical solution has arrived.
The all-time record is Usain Bolt's 9.58 seconds, set in 2009. What is the fastest time, ultimately, for an ideal human body?
Cats twist and snakes slide, exploiting and negotiating physical laws. Scientists are figuring out how.
Physicists have increasingly begun to view life as information-processing "states of matter" that require special consideration.
From the explosions themselves to their unique and vibrant colors, the fireworks displays we adore require quantum physics.
Our thermodynamic arrow of time explains why the entropy of any isolated system always increases. But it can't explain what we perceive.
All telescopes are fundamentally limited in what they can see. JWST reveals more distant galaxies than Hubble, but still can't see them all.
Although the Big Bang occurred at an instant in time long ago, we still see the light from it. Will the evidence ever disappear completely?
Northern lights in the American South, clusters of huge geomagnetic storms—the Sun is throwing a tantrum right on schedule.
There are two different ways to measure the expansion rate of the Universe, and they don't agree. And no, new measurements don't help.
Predicted way back in the 1960s, the discovery of the Higgs boson in 2012 completed the Standard Model. Here's why it remains fascinating.
A new technique that can automatically classify phases of physical systems could help scientists investigate novel materials.
Scientists are searching for dark matter particles that are trillions or even quadrillion times lighter than the more traditional searches.
The number of planets that could support life may be far greater than previously thought, a recent discovery suggests.
There are many theories of gravity out there, and many interpretations of wide binary star data. What have we really learned from it all?
A human hand has the power to split wooden planks and demolish concrete blocks. A trio of physicists investigated why this feat doesn’t shatter our bones.