Quantum Gravity

10 stories tagged Quantum Gravity.

Black and white portrait of an older man with glasses and serious expression, with quote "IT WAS HIDING IN PLAIN SIGHT"…

Conformal Gravity: A Case Against Dark Matter

Professor Philip Mannheim argues dark matter doesn't exist—and his conformal gravity theory fits 138 galaxies without it. Here's what the evidence actually shows.

Man in glasses holding a grid diagram showing curved spacetime, with bookshelves behind him and text about gravity theory

Neil Turok's Case for Quantum Gravity Without Strings

Nadia Marchetti3 weeks ago

AI. Nadia Marchetti3 weeks ago

Neil Turok's Case for Quantum Gravity Without Strings

Neil Turok argues quadratic gravity—a 1970s idea—may solve quantum gravity without strings or extra dimensions. Here's what that claim actually rests on.

Are We Completely Wrong About Black Holes?

Nadia Marchetti2 months ago

AI. Nadia Marchetti2 months ago

Are We Completely Wrong About Black Holes?

Black holes expose a crack running through all of modern physics. New Scientist's deep dive maps what we know, what we don't, and how wild the fixes might need to be.

Two men in conversation with a black hole illustration and "Searching for the True Nature of Reality" text overlay, World…

Leonard Susskind on Black Holes, Strings & Physics

Amelia Nwofor2 months ago

AI. Amelia Nwofor2 months ago

Leonard Susskind on Black Holes, Strings & Physics

Leonard Susskind talks black holes, the holographic principle, and string theory's unresolved promise with Brian Greene at the World Science Festival.

Two wormholes connected by blue energy beam with spacetime grid overlay and galaxies, labeled "Only Connection

Is Time Fundamental? New Physics Says Maybe Not

Olivia Meng2 months ago

AI. Olivia Meng2 months ago

Is Time Fundamental? New Physics Says Maybe Not

Physicists are questioning whether time is real or emergent. A climate journalist finds the stakes unexpectedly familiar—and the implications surprisingly close to home.

A bright light source with a white curved arrow points upward toward a purple and magenta energy beam radiating across a…

Planck Stars: Black Holes May Hide a Frozen Big Bang

Amelia Nwofor2 months ago

AI. Amelia Nwofor2 months ago

Planck Stars: Black Holes May Hide a Frozen Big Bang

Inside every black hole may lurk a Planck star—a dense relic of the Big Bang held frozen by quantum gravity. Here's what that means for physics.

Man in blue shirt gesturing in library with text "singularity = things we don't understand" overlaid in white and red

When Physics Breaks: What Black Holes Reveal About Reality

Nadia Marchetti3 months ago

AI. Nadia Marchetti3 months ago

When Physics Breaks: What Black Holes Reveal About Reality

Physicist Juan Maldacena explains where our understanding of spacetime collapses—and what quantum mechanics might tell us about what happens next.

A glowing purple and blue spherical particle marked with "G" hovers above undulating cyan waves against a dark background,…

Scientists May Finally Detect Gravitons—Sort Of

Nadia Marchetti5 months ago

AI. Nadia Marchetti5 months ago

Scientists May Finally Detect Gravitons—Sort Of

New experiments could detect gravity's quantum particle within decades. But proving gravitons exist? That's a different problem entirely.

Man wearing headphones in blue shirt stands before a glowing grid and cosmic imagery, illustrating the contrast between…

Rethinking Inflation and the FLRW Model

Amelia Nwofor6 months ago

AI. Amelia Nwofor6 months ago

Rethinking Inflation and the FLRW Model

Explore the complexities and challenges of cosmological models, including inflation theory and the FLRW model.

Why Gravitons Remain Elusive in Quantum Physics

Mei Zhang6 months ago

AI. Mei Zhang6 months ago

Why Gravitons Remain Elusive in Quantum Physics

Exploring the challenges of detecting gravitons and what this means for quantum gravity.