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Big Bang

Stringy filaments wiggling against a black background.
Abstractions blog

Some Physicists See Signs of Cosmic Strings From the Big Bang

September 29, 2020

Subtle aberrations in the clockwork blinking of stars could become “the result of the century.” That’s if the distortions are produced by a network of giant filaments left over from the birth of the universe.

Black holes of various sizes
black holes

Physicists Argue That Black Holes From the Big Bang Could Be the Dark Matter

September 23, 2020

It was an old idea of Stephen Hawking’s: Unseen “primordial” black holes might be the hidden dark matter. A new series of studies has shown how the theory can work.

The cyclic universe.
Abstractions blog

Big Bounce Simulations Challenge the Big Bang

August 4, 2020

Detailed computer simulations have found that a cosmic contraction can generate features of the universe that we observe today.

cosmology

Physicists Debate Hawking’s Idea That the Universe Had No Beginning

June 6, 2019

A recent challenge to Stephen Hawking’s biggest idea — about how the universe might have come from nothing — has cosmologists choosing sides.

Abstractions blog

A New Test for the Leading Big Bang Theory

September 11, 2018

Cosmologists have predicted the existence of an oscillating signal that could distinguish between cosmic inflation and alternative theories of the universe’s birth.

520px illustration for the bounce model theory
cosmology

How the Universe Got Its Bounce Back

January 31, 2018

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.

Illustration: window showing dark matter map
cosmology

Scientists Unveil New Inventory of Universe’s Dark Contents

August 3, 2017

The first major results from the Dark Energy Survey signal the start of a new era of cosmology.

Eva Silverstein at Stanford University
Thinking Places

Eva Silverstein’s Spirals and Strings

July 17, 2017

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

cosmology

Physicists Hunt for the Big Bang’s Triangles

April 19, 2016

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