National Science Foundation
National Science Foundation: Astronomy and Space: Research Overview
Explore some of our most fundamental questions about space exploration with this research overview collected by scientists at the National Science Foundation. Additionally, experience deep space first-hand with telescope interactives.
PBS
Pbs Teachers: Origins: The Origins Game
Choose the location on an interactive world map to locate where historical scientific events took place. Test your knowledge of various notable accomplishments and discoveries related to the origins of the universe and the Earth.
Famous Scientists
Famous Scientists: Anaximander
Find out about the pre-Socratic Greek philosopher who observed and explained different aspects of the universe, with a particular interest in its origins.
American Museum of Natural History
American Museum of Natural History: Profile: Georges Lemaitre
Find out about the life and work of the father of the Big Bang theory, Georges Lemaitre. This article describes the origin of the cosmology theory and its growing acceptance among scientists. This is an excerpt from COSMIC HORIZONS:...
Other
American Institute of Physics: Ideas of Cosmology: Big Bang or Steady State?
Find out about the Steady State Theory of the origin of the universe. Learn about the scientific thinking and historical findings supporting this theory which states that new matter is continuously being created.
CK-12 Foundation
Ck 12: Earth Science: Big Bang Study Guide
Review the science behind the Big Bang Theory of the origin of the universe.