It’s not about particle-antiparticle pairs falling into or escaping from a black hole. A deeper explanation alters our view of reality.
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More than any other equation in physics, E = mc² is recognizable and profound. But what do we actually learn about reality from it?
The Universe gravitates so that normal matter and General Relativity alone can’t explain it. Here’s why dark matter beats modified gravity.
The secret sauce is the real world.
Mars and Earth were sister planets in many ways, with early similar conditions. Why did Mars die? The leading explanation isn’t universal.
The theory is accurate within at least one part in a quadrillion.
In the tears and laughter of a single life, you find the grief and joy of humanity.
The classic picture of Jupiter’s great rocky core might be entirely wrong.
Perhaps wormholes will no longer be relegated to the realm of science fiction.
Einstein’s relativity overthrew the notion of absolute space and time, replacing them with a spacetime fabric. But is spacetime truly real?
While Saturn and its moons all appear faint and cloudy to JWST, Saturn’s rings are the star of the show. Here’s the big scientific reason.
Is science close to explaining everything about our Universe? Physicist Sabine Hossenfelder reacts.
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Yes, “the laws of physics break down” at singularities. But something really weird must have happened for black holes to not possess them.
Holograms preserve all of an object’s 3D information, but on a 2D surface. Could the holographic Universe idea lead us to higher dimensions?
In general relativity, white holes are just as mathematically plausible as black holes. Black holes are real; what about white holes?
The passage of time is something we all experience, as it takes us from one moment to the next. But could it all just be an illusion?
The existence of another watery world in the outer solar system may offer clues to how such seas form — and hope for another spot to search for life.
Physicists have yet to pinpoint the hypothetical matter that keeps galaxies from flying apart. Now they have a new focus.
The most celebrated genius in human history didn’t just revolutionize physics, but taught many valuable lessons about living a better life.
Einstein’s theory of general relativity introduced the concept of space having a shape. So, what is the shape of space?
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.
The visible Universe extends 46.1 billion light-years from us, while we’ve probed scales down to as small as ~10^-19 meters.
The Universe’s history, from cosmic inflation to the Big Bang to the present, is known. But whether it’s infinite or not is still a mystery.
The concept of the warp drive is currently at odds with everything we know to be true about physics.
From before the Big Bang to Voyager 1, particle physicist Harry Cliff takes us on a whiz-bang tour of the Universe’s evolution.
Though a single measurement is not enough to definitively decide the debate, this is a major win for dark matter proponents.
From how life emerged on Earth to why we dream, these unanswered questions continue to perplex scientists.
The problem of the electroweak horizon haunts the standard model of cosmology and beckons us to ask how deep a rethink the model may need.
That scary swirling void from which nothing can escape is our perfect universal translation tool.
It was barely a century ago that we thought the Milky Way encompassed the entirety of the Universe. Now? We’re not even a special galaxy.