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cosmology

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

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

<p>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.</p>
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.

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

<p>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.</p>
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.

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

<p>The story of the universe’s birth — and evidence for string theory — could be found in triangles and myriad other shapes in the sky.</p>
cosmology

Physicists Hunt for the Big Bang’s Triangles

The story of the universe’s birth — and evidence for string theory — could be found in triangles and myriad other shapes in the sky.

<p>The path from a revolutionary set of equations to the detection of gravitational waves was strewn with obstacles and controversy, explains the physicist Daniel Kennefick — and the struggle continues.</p>
Q&A

From Einstein’s Theory to Gravity’s Chirp

The path from a revolutionary set of equations to the detection of gravitational waves was strewn with obstacles and controversy, explains the physicist Daniel Kennefick — and the struggle continues.

<p>Ripples in space-time have been detected a century after Einstein predicted them, launching a new era in astronomy.</p>
astrophysics

Gravitational Waves Discovered at Long Last

Ripples in space-time have been detected a century after Einstein predicted them, launching a new era in astronomy.