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Cosmology

The study of the birth, evolution, and fate of the universe.

Radio Programs

The Future Outlining a cold, dark future March 16, 2018

Before the Big Bang Looking before the beginning March 15, 2018

The Big Bang Getting the universe off to a fast start March 14, 2018

Early Light Looking for “fog” in the early universe December 15, 2017

Seeing Deep Looking deep into the early universe November 21, 2017

Dark Skies Why the night sky is dark January 6, 2017

More Reionization An early light in the young universe November 4, 2016

Reionization Giving the universe a charge November 3, 2016

WFIRST Unwrapping a Christmas present March 17, 2016

James Webb Telescope Looking for the first galaxies March 16, 2016

Arrow of Time Going forward in time February 16, 2016

Back to Work A giant experiment goes back to work March 5, 2015

Featured Images

This diagram depicts the 13.8-billion-year history of the universe

Zero to 13.8 Billion March 14, 2018

A graphical history of the universe

End of the Dark Ages November 3, 2016

COBE view of the cosmic microwave background

Afterglow November 18, 2014

Simulation of the early universe

Tangled Web May 10, 2014

The Standard Model

Building Blocks June 27, 2013

Portion of Hubble Extreme Deep Field

Extreme Astronomy September 25, 2012

Cosmic Inflation

A Big Push June 15, 2011