Supermassive black holes at the centers of galaxies gobble up whatever matter ventures too close, becoming active. Here's how they work.
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The last naked-eye Milky Way supernova happened way back in 1604. The next one could be the key to solving the dark matter mystery.
Fermilab's TeVatron just released the best mass measurement of the W-boson, ever. Here's what doesn't add up.
∆G = ∆H - T∆S is one of the most abstract formulas in science, but it is also one of the most important. Without it, life cannot exist.
When white dwarfs explode, they create a type Ia supernovae. After decades of following the leading theory, here's the complete overhaul!
If you want to understand the Universe, cosmologically, you just can't do it without the Friedmann equation. With it, the cosmos is yours.
An average undergraduate student in physics is better than the AI.
On the largest scales, galaxies don't simply clump together, but form superclusters. Too bad they don't remain bound together.
The anthropic principle has fascinating scientific uses, where the simple fact of our existence holds deep physical lessons. Don't abuse it!
The neutrino is the most ghostly, rarely-interacting particle in all the Standard Model. How well can we truly make "beams" out of them?
For many years, some cosmologists embraced the idea of an eternal, steady state universe. But science triumphed over philosophical prejudice.
The false assumption the Multiverse relies on is that something which exists requires an explanation.
What do you call it when the Earth shakes for three decades?
The great hope is that beyond the indirect, astrophysical evidence we have today, we'll someday detect it directly. But what if we can't?
There's a big difference between the notions of 'false vacuum' and 'true vacuum' states. Here's why we don't want to live in the former.
We confidently state that the Universe is known to be 13.8 billion years old, with an uncertainty of just 1%. Here's how we know.
“Should they strike, each of them has an energy at impact equal to all of the nuclear weapons on Earth combined."
The laws of physics state that you can't create or destroy matter without also creating or destroying an equal amount of antimatter. So how are we here?
In General Relativity, white holes are just as mathematically plausible as black holes. Black holes are real; what about white holes?
Particle physics needs a new collider to supersede the Large Hadron Collider. Muons, not electrons or protons, might hold the key.
There's a speed limit to the Universe: the speed of light in a vacuum. Want to beat the speed of light? Try going through a medium!
In the spirit of the 1969 moon landing, we now have a golden opportunity to pursue “nondisruptive” creative solutions.
In Sun-like stars, hydrogen gets fused into helium. In the Big Bang, hydrogen fusion also makes helium. But they aren't close to the same.
There has been a 600% increase in European gas prices so far in 2021.
What would become the Big Bang model started from a crucial idea: that the young Universe was denser and hotter.
Stars orbiting black holes were observed to move significantly slower than expected. One explanation centers on dark matter.
When you don't have enough clues to bring your detective story to a close, you should expect that your educated guesses will all be wrong.
The concept of ‘relativistic mass’ has been around almost as long as relativity has. But is it a reasonable way to make sense of things?
Chemical energy, where electrons transition in atoms, powers the reactions we see. But two other types hold more promise than all the rest.
Our Universe requires dark matter in order to make sense of things, astrophysically. Could massive photons do the trick?