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Physics

Dwarf irregular galaxy
Abstractions blog

Researchers Check Space-Time to See if It’s Made of Quantum Bits

The newly developed theory of emergent gravity, proposed as an alternative to dark matter, struggles in one of its first trials.

Naked singularities
quantum gravity

Where Gravity Is Weak and Naked Singularities Are Verboten

Recent calculations tie together two conjectures about gravity, potentially revealing new truths about its elusive quantum nature.

Andromeda galaxy
Abstractions blog

How Superfluid Dark Matter Mimics an Old Idea About Gravity

Does the force of gravity change at large scales? Perhaps not, but a new theory of dark matter shows why that could appear to be the case.

Dark matter superfluid
dark matter

Dark Matter Recipe Calls for One Part Superfluid

A different kind of dark matter could help to resolve an old celestial conundrum.

Man emerging from particals climbing monolith
consciousness

A Theory of Reality as More Than the Sum of Its Parts

New math shows how, contrary to conventional scientific wisdom, conscious beings and other macroscopic entities might have greater influence over the future than do the sum of their microscopic components.

Black hole merger
Abstractions blog

Latest Black Hole Collision Comes With a Twist

The Advanced Laser Interferometer Gravitational-Wave Observatory’s third detection further compounds the mystery of why black holes collide.

Journey to the Birth of the Solar System
Multimedia

Journey to the Birth of the Solar System

Join David Kaplan on a virtual-reality tour showing how the sun, the Earth and the other planets came to be.

Light from the first galaxies clears the universe.
astrophysics

Discoveries Fuel Fight Over Universe’s First Light

A series of observations at the very edge of the universe has reignited a debate over what lifted the primordial cosmic fog.

Tim Maudlin
Q&A

A Defense of the Reality of Time

Time isn’t just another dimension, argues Tim Maudlin. To make his case, he’s had to reinvent geometry.