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Black Hole
Although many of Einstein's papers revolutionized physics, there's one Einsteinian advance, generally, that towers over all the rest.
Want to avoid getting "spaghettified" by a black hole? Steer clear of the smaller ones.
Today, supermassive black holes and their host galaxies tell a specific story in terms of mass. But JWST reveals a different story early on.
One newly discovered, ancient star has a composition unlike any other. Explaining its existence is already blowing astronomers' minds.
Here's why the answer may forever elude scientists.
As early as we've been able to identify them, the youngest galaxies seem to have large supermassive black holes. Here's how they were made.
The first stars took tens or even hundreds of millions of years to form, and then died in the cosmic blink of an eye. Here's how.
The Universe is an amazing place. Under the incredible, infrared gaze of JWST, it's coming into focus better than ever before.
Thanks to observations of gravitational waves, scientists were able to settle a longstanding debate over the speed of gravity.
Since JWST first glimpsed the Universe, we've entered a new era in understanding the earliest objects in the Universe. What have we learned?
The brilliant mind who discovered the spacetime solution for rotating black holes claims singularities don't physically exist. Is he right?
The Big Bang theory is not threatened, but astrophysicists have some explaining to do.
All matter particles can act as waves, and massless light waves show particle-like behavior. Can gravitational waves also be particle-like?
With JWST, Chandra, and gravitational lensing combined, evidence has emerged for the earliest black hole ever. And wow, is it a surprise!
For the first time, astronomers have created a data-driven estimate for how many black holes are in our Universe: more than anyone expected.
12mins
When black holes disappear, what happens to the stuff that fell in? Physicist Brian Cox explains.
From the Big Bang to black holes, singularities are hard to avoid. The math definitely predicts them, but are they truly, physically real?
The hot Big Bang was an energetic, brilliantly luminous event. Today's Universe is alight with stars. But in between, the dark ages ruled.
The matter that creates black holes won't be what comes out when they evaporate. Will the black hole information paradox ever be solved?
12mins
Quantum wormholes are mathematically possible — but might also be physically impossible. Physicist Janna Levin explains Hawking’s famous information paradox.
5mins
Gravity defies quantum mechanics. What does that mean for a theory of everything?
9mins
Ever wonder what would happen if we got sucked into a black hole? Turns out we could live in it for a while — if it was big enough.
Even with the quantum rules governing the Universe, there are limits to what matter can withstand. Beyond that, black holes are unavoidable.
Nothing can escape from a black hole. So where do Hawking radiation, relativistic jets, and X-ray emissions around black holes come from?
What are supermassive black holes, how common are they, and how do they grow up throughout cosmic history? Listen and find out!
From the present day all the way to less than 400 million years after the Big Bang, we're seeing how the Universe grew up like never before.
Some 55 million light-years away lies the giant galaxy Messier 87. Its supermassive black hole, inside and out, looks better than ever.
After 15 years of monitoring 68 objects known as millisecond pulsars, we've found the Universe's background gravitational wave signal!
In a distant galaxy, a cosmic dance between two supermassive black holes emits periodic flashes of light.
The brightest gamma-ray burst ever observed, GRB 221009A behaved in unexpected ways that might help us understand how they occur.