When Einstein gave General Relativity to the world, he included an extraneous cosmological constant. How did his ‘biggest blunder’ occur?
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Perhaps wormholes will no longer be relegated to the realm of science fiction.
For decades, theorists have been cooking up “theories of everything” to explain our Universe. Are all of them completely off-track?
While humanity has been skywatching since ancient times, much of our cosmic understanding has come about only recently. Very recently.
Sabine Hossenfelder talks about Albert Einstein, dead grandmothers, the physics of aging, and more in this full interview with Big Think.
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Dark matter hasn’t been directly detected, but some form of invisible matter is clearly gravitating. Could the graviton hold the answer?
The Universe isn’t just expansion, but the expansion itself is accelerating. So why can’t we feel it in any measurable way?
Can two planets stably share the same orbit? Conventional wisdom says no, but a look at Saturn’s moons might tell a different story.
A more distant galaxy liked the lens so much that it went and put a ring on it. Here’s the science behind this remarkable cosmic object.
Is science close to explaining everything about our Universe? Physicist Sabine Hossenfelder reacts.
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Between the least massive star and most massive planet lies the mysterious brown dwarf: a class of objects that are neither star nor planet.
Here’s what recent DESI measurements suggest — and why it’s too early to update conventional predictions about the Universe’s distant future.
The classic picture of Jupiter’s great rocky core might be entirely wrong.
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.
Though a single measurement is not enough to definitively decide the debate, this is a major win for dark matter proponents.
Einstein’s relativity overthrew the notion of absolute space and time, replacing them with a spacetime fabric. But is spacetime truly real?
How scientists are hearing the gravitational background “hum” of the Universe for the very first time.
The threats Mars astronauts face — and how NASA is working to solve them.
Einstein’s “happiest thought” led to General Relativity’s formulation. Would a different profound insight have led us forever astray?
Yes, “the laws of physics break down” at singularities. But something really weird must have happened for black holes to not possess them.
With a telescope at just the right distance from the Sun, we could use its gravity to enhance and magnify a potentially inhabited planet.
The Big Bang’s hot glow faded away after only a few million years, leaving the Universe dark until the first stars formed. Oh, the changes!
Lord Kelvin is thought to have said there was nothing new to discover in physics. His real view was the opposite.
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.
The key problem with the dark matter hypothesis is that nobody knows what form dark matter might take.
The original principle of relativity, proposed by Galileo way back in the early 1600s, remains true in its unchanged form even today.
Straddling the bounds of science and religion, Newton wondered who set the planets in motion. Astrophysics reveals the answer.
That scary swirling void from which nothing can escape is our perfect universal translation tool.
From the Big Bang to dark energy, knowledge of the cosmos has sped up in the past century — but big questions linger.