Friday, June 8, 2007

Dark Energy and Dark Matter

(this post is continuing as just the title, "Dark Energy and Dark Matter" and its comments)

5 comments:

nilubilu said...

Will there ever be light energy/ light matter witghout dark energy and dark matter, vice versa? Oneness in duality... Maybe duality is not even the right word for this. ying/ yang (you get the drift), my invincible friends.

btw love the profile pic (-:

nilubilu said...

My grandpa always tells me, "The beginning and the end of the universe lies right within that fathom long body of yours" (-:

Arti Glove said...
This comment has been removed by the author.
Arti Glove said...

"Dark energy, the mysterious force discovered in 1998, has been responsible for much of the bad news in physics over the last 10 years. . . . Eventually this runaway dark energy will suck all the energy and life out of the universe." -Dennis Overbye, in essay, "The Universe, Expanding Beyond All Understanding." New York Times web address: http://www.nytimes.com/2007/06/05/
science/space/05essa.html

nilubilu said...

Dark Matter by Stephen Hawkins from PBS (Cool stuff)

The ultimate destiny of our expanding universe depends on how much matter it contains and whether that will be enough to one day stop the expansion. When astronomers count up all the visible matter—the stuff that gives off light—the answer is clearly no. But they have learned over the past several decades that the answer isn’t so cut-and-dried. Observations reveal that vast halos of invisible matter surround galaxies and galaxy clusters. This dark matter adds up to about ten times more mass than the visible stars, gas, and dust seen in galaxies. And there may be more. The inflationary theory, if true, demands that this dark stuff makes up between 90 and 99 percent of the universe. Astronomers have yet to determine what constitutes this dark matter, although some leading candidates go by the names MACHOs, WIMPs, and neutrinos

http://www.pbs.org/wnet/hawking/strange/html/dark.html