There is no such thing as a void in the Universe.
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In logic, ‘reductio ad absurdum’ shows how flawed arguments fall apart. Our absurd Universe, however, often defies our intuitive reasoning.
A recent experiment challenges the leading dark matter theory and hints at new directions for uncovering one of the Universe’s biggest mysteries.
There are two methods to measure the expansion rate of the Universe. The results do not agree with each other, and this is a big problem.
No matter what physical system we consider, nature always obeys the same fundamental laws. Must it be this way, and if so, why?
When what we predict and what we measure don’t add up, that’s a sign there’s something new to learn. Could it be a new fundamental force?
Figuring out the answer involved a prism, a pail of water, and a 50 year effort by the most famous father-son astronomer duo ever.
Explanations for the cosmic speed limit often conflate mass with inertia.
The Universe isn’t just expansion, but the expansion itself is accelerating. So why can’t we feel it in any measurable way?
In the very early Universe, practically all particles were massless. Then the Higgs symmetry broke, and suddenly everything was different.
IceCube scientists have detected high-energy tau neutrinos from deep space, suggesting that neutrino transformations occur not only in lab experiments but also over cosmic distances.
The multiverse pushes beyond the limits of the scientific method. From our vantage point in the Universe, we cannot know if it’s real.
Often viewed as a purely theoretical, calculational tool only, direct observation of the Lamb Shift proved their very real existence.
It may be time for a cosmological paradigm shift.
If nature were perfectly deterministic, atoms would almost instantly all collapse. Here’s how Heisenberg uncertainty saves the atom.
For many years, some cosmologists embraced the idea of an eternal, steady state universe. But science triumphed over philosophical prejudice.
The second law of thermodynamics is an inviolable law of reality. Here’s what everyone should know about closed, open, and isolated systems.
Emotion dysregulation has been linked to unhealthy risk-taking, relationship challenges, and negative physical health outcomes.
Named “Phoenix,” this AI-powered humanoid could be your next coworker.
How scientists found out that we live in a cosmic aquarium.
Physicists just can’t leave an incomplete theory alone; they try to repair it. When nature is kind, it can lead to a major breakthrough.
A perfect map is as useless as it is impossible to create.
If the Universe is expanding, and the expansion is accelerating, what does that tell us about the cause of the expanding Universe?
When cosmic inflation came to an end, the hot Big Bang ensued as a result. If our cosmic vacuum state decays, could it all happen again?
Yes, dark energy is real. Yes, distant galaxies recede faster and faster as time goes on. But the expansion rate isn’t accelerating at all.
On the largest of cosmic scales, the Universe is expanding. But it isn’t all-or-nothing everywhere, as “collapse” is also part of the story.
Researchers devise a record-breaking laser transmission that avoids atmospheric interference.
Early on, only matter and radiation were important for the expanding Universe. After a few billion years, dark energy changed everything.
Symmetries aren’t just about folding or rotating a piece of paper, but have a profound array of applications when it comes to physics.