Across all wavelengths of light, the Sun is brighter than the Moon. Until we went to the highest energies and saw a gamma-ray surprise.
Search Results
You searched for: energy
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?
If the electromagnetic and weak forces unify to make the electroweak force, maybe, at higher energies, something even grander happens?
Without wormholes, warp drive, or some type of new matter, energy, or physics, everyone is limited by the speed of light. Or are they?
A $30,000 electric vehicle with 400 miles of range that charges in under 10 minutes remains a pipe dream over the near future.
In all the Universe, only a few particles are eternally stable. The photon, the quantum of light, has an infinite lifetime. Or does it?
As time goes on, dark energy makes distant galaxies recede from us ever faster in our expanding Universe. But nothing truly disappears.
As wind power grows around the world, so does the threat the turbines pose to wildlife. From simple fixes to high-tech solutions, new approaches can help.
What if we could harvest energy from human heat, sweat, or vibrations?
An enormous amount of antimatter is coming from our galactic center. But the culprit probably isn't dark matter, but merely neutron stars.
When it comes to predicting the energy of empty space, the two leading theories disagree by a factor of 100 googol quintillion.
Amplifying the energy within a laser, over and over, won't get you an infinite amount of energy. There's a fundamental limit due to physics.
In general relativity, matter and energy curve spacetime, which we experience as gravity. Why can't there be an "antigravity" force?
The National Ignition Facility just repeated, and improved upon, their earlier demonstration of nuclear fusion. Now, the true race begins.
Bang bang all over the Universe.
When the hot Big Bang first occurred, the Universe reached a maximum temperature never recreated since. What was it like back then?
As Marcel Proust said, “The real voyage of discovery... consists not in seeking new landscapes, but in having new eyes.”
All biological systems are wildly disordered. Yet somehow, that disorder enables plant photosynthesis to be nearly 100% efficient.
The second law of thermodynamics is an inviolable law of reality. Here's what everyone should know about closed, open, and isolated systems.
In the earliest stages of the hot Big Bang, equal amounts of matter and antimatter should have existed. Why aren't they equal today?
The conservation of energy is one of the most fundamental laws governing our reality. But in the expanding Universe, that's just not true.
Don't put all your eggs in one basket.
If you gave me $400 and I gave you $3.15, would you consider yourself wealthier? That's a financial analogy for the supposed fusion power "breakthrough."
Measurements of the acceleration of the universe don’t agree, stumping physicists working to understand the cosmic past and future. A new proposal seeks to better align these estimates — and is likely testable.
LK-99, almost certainly, isn't a room-temperature superconductor. The underlying physics of the phenomenon helps us understand why.
All of the matter and radiation we measure today originated in a hot Big Bang long ago. The Universe was never empty, not even before that.
Science fiction met nuclear fission when Hungarian physicist Leó Szilárd pondered the explosive potential of nuclear energy.
First derived by Emmy Noether, for every symmetry a theory possesses, there's an associated conserved quantity. Here's the profound link.
Back during the hot Big Bang, it wasn't just charged particles and photons that were created, but also neutrinos. Where are they now?
It's not about particle-antiparticle pairs falling into or escaping from a black hole. A deeper explanation alters our view of reality.