The Nature of the Universe

Spiral galaxy M74 holds 100 billion stars. Oddly, stars at its outer edges rotate with the same velocity as those closer in, suggesting the influence of a substantial mass of unseen dark matter.  NASA

There are many questions concerning the nature of the universe that science attempts to answer.  Some of these scientific discoveries and ideas seem to be counter-intuitive or even defy the senses.  This week's articles point out problems that physics tackles concerning the universe that have yet to be fully answered. The question to consider is: What do we know about the nature of the universe in which we live?  To what extent do you base your ideas about the universe on scientific evidence or on belief? 

• The Dark Hunter
• Stephen Hawking Asks Big Questions About The Universe
• Shedding Light on Dark Matter