Carlo Rovelli on the Physics of Time

The theoretical physicist explains why the idea of the present may not be as simple as our brains would have us believe.

Physics Today

Topics: Nature of Time Quantum Gravity

How Space and Time Could Be a Quantum Error-Correcting Code

The same codes needed to thwart errors in quantum computers may also give the fabric of space-time its intrinsic robustness.

Quanta Magazine

Topics: Black Holes Quantum Gravity

Black Holes and Soft Hair: Why Stephen Hawking’s Final Work Is Important

Malcolm Perry, who worked with Stephen Hawking on his final paper, explains how it improves our understanding of one of the universe’s enduring mysteries.

The Guardian

Topics: Black Holes Quantum Gravity Quantum Mechanics Stephen Hawking

Why Is the Quantum So Mysterious?

Quantum mechanics is how the world works at deepest levels. But nobody has any idea why.

Closer To Truth

Topics: Entanglement Quantum Gravity Quantum Mechanics Relativity Superposition

Is Gravity Quantum?

The ongoing search for the graviton — the proposed fundamental particle carrying gravitational force — is a crucial step in physicists’ long journey toward a theory of everything.

Scientific American

Topics: Gravitational Waves Particles Quantum Gravity Quantum Mechanics

Dark Energy May Be Incompatible With String Theory

A controversial new paper argues that universes with dark energy profiles like ours do not exist in the “landscape” of universes allowed by string theory.

Topics: Dark Energy Quantum Gravity String Theory Universe

Physics Needs Philosophy / Philosophy Needs Physics

Philosophy has always played an essential role in the development of science, physics in particular, and is likely to continue to do so.

Topics: Knowledge Quantum Gravity Quantum Mechanics Relativity

Fuzzballs v. Black Holes

A radical theory replaces the cosmic crunchers with fuzzy quantum spheres, potentially solving the black-hole information paradox and explaining away the big bang and the origin of time.

FQXi

Topics: Big Bang Black Holes Quantum Gravity String Theory Universe

Physicists Find a Way to See the ‘Grin’ of Quantum Gravity

A recently proposed experiment would confirm that gravity is a quantum force.

Topics: Black Holes Entanglement Quantum Gravity Quantum Mechanics

How the Universe Got Its Bounce Back

Cosmologists have shown that it’s theoretically possible for a contracting universe to bounce and expand. The new work resuscitates an old idea that directly challenges the big bang theory of cosmic origins.

Topics: Big Bang Cosmic Inflation Cosmic Origins Quantum Gravity Universe

Watching the Observers

Accounting for quantum fuzziness could help us measure space and time — and the cosmos — more accurately.

Topics: Quantum Gravity Quantum Mechanics

How Dark Matter Lost Its Shine for Me

Q&A with astronomer Stacy McGaugh.

New Scientist

Topics: Dark Matter Galaxies Quantum Gravity

Where Physics and Philosophy Intersect

At its core, physics addresses the fundamental problems that shape our philosophical outlook.

The New York Academy of Sciences

Topics: Quantum Gravity Quantum Mechanics Reality Relativity

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