By: Amanda D.

What is Dark Matter? Dark Matter is what scientist believe the

universe is mostly comprised of. When calculating mass of the galaxy, their

were many discrepancies, and scientist felt that the only way to prove this was by creating an unknown matter

In 1933 Astronomer Fritz Zwicky came up with this concept

It wasn’t until the 1970’s that scientist coined the term Dark Matter

Scientists Thoughts

Dr. Margon, "Mother Nature is having a double laugh. She's hidden most of the matter in the universe, and hidden it in a form that can't be seen”

This shows us how the scientific community feels and how they are very frustrated by this aspect of space

What is it? (Taken Farther) Dark matter range from tiny subatomic

particles weighing 100,000 times less than an electron to black holes with masses millions of times that of the sun

There are two main categories of dark matter which are MACHOs (Massive Astrophysical Compact Halo Objects), and WIMPs (Weakly Interacting Massive Particles)

MACHOs are made of 'ordinary' matter, which is called baryonic matter

WIMPs is made up of non-baryonic matter.

Why is this Important?

This “theory” of dark matter is important because there a large number of matter not being accounted for.

Not only that this matter can make or break certain theories of how the universe was created.

This matter makes up about 25% of the universe

What is Dark Energy?

This an unexplainable force that is drawing galaxies away from one another.

This energy is an attempt by scientist’s to explain the ever expanding universe

This energy is about 70% of space

Thoughts

Albert Einstein knew that were the places in space didn’t appear to have matter, their had to be something there

This energy is a property of space itself, therefore it cannot be diluted as space expands, but since there is more energy forming it actually gets stronger

Theories Some think that this energy is a new type

of fluid or field something that fills all of space but something whose effect on the expansion of the Universe is the opposite of that of matter and normal energy

Quantum theory- "empty space" is actually full of temporary ("virtual") particles that continually form and then disappear

Those are just two theories on dark energy and what people think it could be

Graph Explained

The graph on the last slide showed how much of the universe is made up of matter or energy that we don’t even really know what it is. It goes to show you just how vast our universe is, considering that planets and stars only make up about 5% of the universe.

BibliographyMiller, Chris. "Dark Matter." Welcome to Netcarrier. N.p., n.d.

Web. 3 Feb. 2010. <http://www.eclipse.net/~cmmiller

"ScienceDaily: Dark Matter and Dark Energy News." Science Daily: News & Articles in Science, Health, Environment & Technology. N.p., n.d. Web. 3 Feb. 2010. <http://www.sciencedaily.com/news

above, scientists have come up with the composition that we described, ~70% dark energy, ~25% dark matter, and ~5% normal matter. What is dark matter?. "Dark Energy, Dark Matter — NASA Science." NASA Science. N.p., n.d. Web. 3 Feb. 2010. <http://nasascience.nasa.gov/astrophysics/what-is-dark-energy>.

way, the, and there is a one million dollar "Origin-of-Life" prize being offered:. "Let There Be Light." Let There Be Light. N.p., n.d. Web. 3 Feb. 2010. <http://lettherebelight-77.blogspot.com/>.