A: A cosmology is a particular theory or statement about how the universe or some part of the universe operates. For instance, the heliocentric theory, the idea that the sun is the center of the solar system, is a cosmology. The geocentric theory, that the earth is the center of the solar system, also is a cosmology. The idea that stars are very distant suns is a cosmology too.
At the beginning of the 20th century, many astronomers thought that our galaxy, the Milky Way, was the only galaxy. Thus, they often referred to the Milky Way as "the universe." Many faint patches of light seen through telescopes generally were thought to be clouds of gas within our galaxy. However, much earlier Kant had suggested that many of these faint objects were other galaxies, each containing billions of stars. Since these "universes" were separated by huge gulfs of space, they were compared to islands. This theory was eventually proven to be correct.
Learn why cosmology matters as creation astronomer Dr. Danny Faulkner introduces different ways of understanding the universe. 
Universe by Design (softcover) Today's Q&A about cosmology comes right out of Dr. Danny Faulkner's book. This excellent resource is
perfect for the upper-level student or well-read layman, featuring explanatory diagrams and illustrations plus plenty of examples and analogies to help the reader understand key concepts of cosmology—from a solidly biblical perspective!
Sediba's shadow:
Sediba fossils shuffle the deck of diversity but fail to connect the evolutionary dots.
Hobbit who?: Japanese study affirms hobbit humanity and offers clues to their origin.
Primordial batteries: Without power, the show's over before it starts.
Shroud 2.0: Re-dated Shroud of Turin gets its own app.
Science standards on the march: As publishers plan to implement NGSS science standards, textbook market will likely take the reins of education.
In this issue . . . 
This Week . . . 
Genesis 1:1
Big Book of Earth & Sky: Hardcover
Tower of Babel
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