Saul Perlmutter – Why does Dark Matter Really Matter?

George Smoot discusses the study of “Dark Matter”. Smoot describes differences between dark matter and ordinary matter, namely that dark matter expands and cools more rapidly than ordinary matter.

He theorizes this dark matter, which has been identified because of its gravitational force, takes the form of a cosmic web that is instrumental in forming the clusters of galaxies, stars and planets we see today.

Key Takeaways:

• By studying how much the universe is slowing down, it can help us measure, or “weigh” everything in it.
• The effect of the energy of the vacuum pushing out with the expanding of the universe and pulling in is different at different distances away from us, so people need to measure at various distances with supernova.
• The guy in the video came to a similar conclusion using a different line of reasoning about dark energy and dark matter. It appears that there is more than one way to measure the difference and the sum. This helps to describe much of the universe that we cannot see.

“Maybe these particular measurements that people have done so far looking at galaxies orbiting around clusters of galaxies was not capturing all the dark matter.”

~Comments always welcome…

Related Content:

• TamingGravity/About

References:

• ClosertoTruth.com
• Closer To Truth (YouTube Channel)