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Physics
Time gets a little strange as you approach the speed of light.
We are about to learn a lot more about the most elusive of cosmic particles.
So far, two papers have been retracted, and a third is under investigation. Accusations of plagiarism appear convincing.
It's the best-known transcendental number of all-time, and March 14 (3/14 in many countries) is the perfect time to celebrate Pi (π) Day!
Somewhere out there in the Universe is the heaviest neutron star, and elsewhere lies the lightest black hole. Where's the line between them?
Even with quantum teleportation and the existence of entangled quantum states, faster-than-light communication still remains impossible.
Not even Einstein immediately knew the power of the equations he gave us.
What kind of object will you form? What will its fate be? How long will a star live? Almost everything is determined by mass alone.
5mins
Is science close to explaining everything about our Universe? Physicist Sabine Hossenfelder reacts.
Unless you confront your theory with what's actually out there in the Universe, you're playing in the sandbox, not engaging in science.
7mins
Frank Wilczek is celebrated for his investigations into the fundamental laws of nature that have transformed our understanding of the forces that govern our Universe. In this video, the MIT […]
Since its observation discovery in the 1990s, dark energy has been one of science's biggest mysteries. Could black holes be the cause?
From the Big Bang to dark energy, knowledge of the cosmos has sped up in the past century — but big questions linger.
The answer to the age-old philosophical question of whether there is meaning in the Universe may ultimately rest upon the power of information.
John Templeton Foundation
5mins
Why does time move forward but not backward? Physicist Sabine Hossenfelder explains.
The solution involves the infamous Navier-Stokes equations, which are so difficult, there is a $1-million prize for solving them.
The Universe isn't as "clumpy" as we think it should be.
3mins
Left–Right, Back–Forth, Up–Down. What’s the fourth dimension?
7mins
How the Big Bang gave us time, explained by theoretical physicist.
When you bring two fingers together, you can feel them "touch" each other. But are your atoms really touching, and if so, how?
To Einstein, nature had to be rational. But quantum physics showed us that there was not always a way to make it so.
Humanity's newest, most powerful space telescope is performing even better than predicted. The reason why is unprecedented.
The central equation of quantum mechanics, the Schrödinger equation, is different from the equations found in classical physics.
It isn't just identical particles that can be entangled, but even those with fundamentally different properties interfere with each other.
Laser-guided lightning systems could someday offer much greater protection than lightning rods.
5mins
Do humans have souls, or are we just particles? Physicist Sabine Hossenfelder explains.
Though a single measurement is not enough to definitively decide the debate, this is a major win for dark matter proponents.
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.
The quantum world — and its inherent uncertainty — defies our ability to describe it in words.
6mins
How did complex systems emerge from chaos? Physicist Sean Carroll explains.