A cosmos with no beginning or end
The cyclic theory of the universe proposes a novel answer to the question: What happened at the Big Bang?
February 23, 2009
|In the standard Big Bang model of the universe, the cosmos began with a blinding flash 13.7 billion years ago. The Big Bang created space, time, matter, and energy. During the next 13.7 billion years, the initially minuscule volume expanded and cooled, giving birth to galaxies, stars, planets, and life. It's a compelling story, and tons of evidence supports it. Yet it's not without some uncertainty.|
You are currently not logged in. This article is only available to Astronomy magazine subscribers.
Already a subscriber to Astronomy magazine?
If you are already a subscriber to Astronomy magazine you must log into your account to view this article. If you do not have an account you will
need to regsiter for one. Registration is FREE and only takes a couple minutes.
Non-subscribers, Subscribe TODAY and save!
Get instant access to subscriber content on Astronomy.com!
- Access our interactive Atlas of the Stars
- Get full access to StarDome PLUS
- Columnist articles
- Search and view our equipment review archive
- Receive full access to our Ask Astro answers
- BONUS web extras not included in the magazine
- Much more!