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Overview 1919 1929 1955 1965 1993 2006
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Teachers' Guide to the Cosmic Times Articles

This teachers' guide is organized by Cosmic Times year, so that each issue has its own set of web pages. Within the pages for each issue, you will find the following:

Use the links in the menu bar above, or click a poster below, to navigate to one of the Cosmic Times issues.

Cosmic Times Posters

Cosmic Times Overview

The Cosmic Times newspapers tell the history of our understanding of the changing Universe through student readings tracing the major discoveries in cosmology over the past century.

This page give a few overview lessons that are either designed as an introduction to the Cosmic Times or that can be used with any single Cosmic Times issue.

1919 Poster


A solar eclipse confirms that Einstein's theory of gravity, not Newton's, correctly predicts the bending of starlight.

1929 Poster


Hubble builds on his earlier discovery that the Milky Way Galaxy is but one of many galaxies in our Universe to find that the Universe is expanding.

1955 Poster


The debate rages between whether the Big Bang and Steady State correctly describes the origin of the universe.

1965 Poster


Penzias and Wilson discover the Cosmic Microwave Background, the remnant radiation from the very early Universe, which makes the Big Bang the lead theory for the origin of the Universe.

1993 Poster


The COBE mission measures fluctuations in the Cosmic Microwave Background, which explain where structure in our Universe comes from and confirming the role of inflation in the early universe.

2006 Poster


The supernova distance scale leads to the discovery of dark energy, a puzzling new component of our Universe that had been undetected until 1997, and its the nature remains a mystery in 2006.

Cosmic Times is a product of the Imagine the Universe! website. Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan P. Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

The Cosmic Times Team

Curator:Barbara Mattson
Responsible NASA Official:Phil Newman

All material on this site has been created and updated between 2007-2016.

This page last updated: Thursday, 04-Jul-2013 21:32:09 EDT