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cosmology

Daily bike rides, serendipitous interactions and long periods of solo thinking inspire this string cosmologist.
Thinking Places

Eva Silverstein’s Spirals and Strings

Daily bike rides, serendipitous interactions and long periods of solo thinking inspire this string cosmologist.

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

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

Dark Matter Recipe Calls for One Part Superfluid

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

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

After a surprise discovery, astrophysicists are racing to understand superenergetic flashes of radio waves that sometimes beep out from distant galaxies.
astrophysics

A Cosmic Burst Repeats, Deepen­ing a Mystery

After a surprise discovery, astrophysicists are racing to understand superenergetic flashes of radio waves that sometimes beep out from distant galaxies.

A proposed theory of gravity does away with dark matter, even as new astrophysical findings challenge the need for galaxies full of the invisible mystery particles.
gravity

The Case Against Dark Matter

A proposed theory of gravity does away with dark matter, even as new astrophysical findings challenge the need for galaxies full of the invisible mystery particles.

A camera lens often used by wildlife and sports photographers has helped astronomers learn about dark matter and galaxy formation.
Abstractions blog

Off-the-Shelf Lens Assists Dark Matter Find

A camera lens often used by wildlife and sports photographers has helped astronomers learn about dark matter and galaxy formation.

String theory has so far failed to live up to its promise as a way to unite gravity and quantum mechanics. At the same time, it has blossomed into one of the most useful sets of tools in science.
string theory

The Strange Second Life of String Theory

String theory has so far failed to live up to its promise as a way to unite gravity and quantum mechanics. At the same time, it has blossomed into one of the most useful sets of tools in science.

According to our best theories of physics, the universe is a fixed block where time only appears to pass.
cosmology

A Debate Over the Physics of Time

According to our best theories of physics, the universe is a fixed block where time only appears to pass.