-
Space for Kids, Our Universe: The Mystery of the Dark Universe
Ordinary matter makes up everything we can see, smell or touch. This matter - which is made from atoms - also makes up planets and stars.
https://www.esa.int/esaKIDSen/SEM2RDW2EMH_OurUniverse_0.html
-
Dark Matter Facts, Information, Pictures - Encyclopedia
Get information, facts, and pictures about dark matter at Encyclopedia.com. Make research projects and school reports about dark matter easy with credible articles from our free, online encyclopedia and dictionary.
http://www.encyclopedia.com/topic/dark_matter.aspx
-
Dark Matter: A Chunk of the Universe is Missing - BBC Universe
What is dark matter? The race is on to find out what this missing matter could be. Meet the dark matter experts who work in labs deep underground.
http://www.bbc.co.uk/science/space/universe/questions_and_ideas/dark_matter
-
What are Dark Matter and Dark Energy? - How Stuff Works
Dark matter and dark energy are part of the fabric of the universe. How much do scientists know about dark matter and dark energy?
http://science.howstuffworks.com/dictionary/astronomy-terms/dark-matter-dark-energy.htm
-
Dark Energy vs. Dark Matter - HETDEX
HETDEX will be the first major experiment to search for dark energy. It will use the giant Hobby-Eberly Telescope at McDonald Observatory and a set of spectrographs to map the three-dimensional positions of one million galaxies.
http://hetdex.org/dark_energy/dark_matter.php
-
Dark Energy: What Is Dark Energy? - Hubblesite
So what is dark energy? Well, the simple answer is that we don't know. It seems to contradict many of our understandings about the way the universe works.
http://hubblesite.org/hubble_discoveries/dark_energy/de-what_is_dark_energy.php
-
Dark Matter and Dark Energy - National Geographic
Learn about dark matter and dark energy.
http://science.nationalgeographic.com/science/space/dark-matter
-
Dark Energy, Dark Matter - NASA Science
What is dark energy? More is unknown than is known - we know how much there is, and we know some of its properties; other than that, dark energy is a mystery - but an important one.
http://science.nasa.gov/astrophysics/focus-areas/what-is-dark-energy/
-
What is Dark Matter? - Space
Dark matter emits no light, and cannot be directly observed, but scientists think that it and dark energy make up most of the mass of the universe.
http://www.space.com/20930-dark-matter.html
-
Dark Matter - Wikipedia, the Free Encyclopedia
Dark matter is a hypothetical substance that is believed by most astronomers to account for around five-sixths of the matter in the universe. Although it has not been directly observed, its existence and properties are inferred from its various gravitational effects: on the motions of visible matter; via gravitational lensing; its influence on the universe's large-scale structure, and its effects in the cosmic microwave background.
https://en.wikipedia.org/wiki/Dark_matter
