Space
The entire local group of galaxies, including the Milky Way, is moving toward the Centaurus cluster at a speed of over a million miles per hour. See http://oposite.stsci.edu/pubinfo/pr/1999/19/ Luckily, Centaurus is about 108 million light years away. I will add to this eventually, within the next 72.6 billion years. OK, I'm back with the latest info: According to http://map.gsfc.nasa.gov/m_mm/mr_limits.html We have compared and combined the new WMAP (Wilkinson Microwave Anisotropy Probe) data with other diverse cosmic measurements (galaxy clustering, Lyman-alpha cloud clustering, supernovae, etc.), and we have found a new unified understanding of universe: * Universe is 13.7 billion years old with only a 1% margin error. * First stars ignited 200 million years after the Big Bang. * Light in WMAP picture from 380,000 years after the Big Bang. * Content of the Universe: * 4% Atoms, 23% Cold Dark Matter, 73% Dark energy. * The data places new constraints on the dark energy. It seems more like a "cosmological constant" than a negative-pressure energy field called "quintessence". But quintessence is not ruled out. * Fast moving neutrinos do not play any major role in the evolution of structure in the universe. They would have prevented the early clumping of gas in the universe, delaying the emergence of the first stars, in conflict with the new WMAP data. * Expansion rate (Hubble constant) value: Ho= 71 km/sec/Mpc (with a margin of error of about 5%) * New evidence for Inflation (in polarized signal) * Fate of the Universe: it will expand forever... The amount of dark matter and energy in the universe plays a crucial role in determining the geometry of space. If the density of matter and energy in the universe is less than the critical density, then space is open and negatively curved like the surface of a saddle. If the density exactly equals the critical density, then space is flat like a sheet of paper. If the density is greater than critical density, then space is closed and positively curved like the surface of a sphere. In this latter case, light paths diverge and eventually converge back to a point. The Inflationary Theory, an extension of the Big Bang theory, predicts that density is very close to the critical density, producing a flat universe, like a sheet of paper. WMAP has determined, within the limits of instrument error, that the universe is flat. ***** I think the universe may be little denser. Seems odd that curved space should be flat. An atlas of the universe is available at http://www.anzwers.org/free/universe/index.html How huge is space? How small is a quark? See http://www.wordwizz.com/pwrsof10.htm ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><> ><>Inner Space
Visit the Multidisciplinary Association For Psychedelic Studies at http://www.maps.org/ ****************************** For information on medical uses of cannabis, visit the following links: http://www.hugcares.org/research/index.htm http://www.druglibrary.org/schaffer/medical_mj.htm http://www.paston.co.uk/users/webbooks/serious-crime.html http://www.jackherer.com/book/ch07.htmlConversations
| Conversation Title | Latest Post | Latest Reply |
|---|---|---|
| Yes | Dec 4, 2001 | Sep 15, 2008 |
| Click Here To Join. | Feb 21, 2003 | Jan 25, 2008 |
| SIGN UP HERE! | May 22, 2001 | May 6, 2005 |
| Word Play 05.02.04 | Feb 6, 2004 | Feb 12, 2004 |
| USA, Berkeley, CA | Apr 26, 2003 | No Replies |
Lizardly
Researcher U150228
Entries
Most Recent Edited Entries
- This user has not written any Edited Entries.
Entries
Disclaimer
h2g2 is created by h2g2's users, who are members of the public. The views expressed are theirs and unless specifically stated are not those of Not Panicking Ltd. If you consider any Entry to be in breach of the site's House Rules, please register a complaint. For any other comments, please visit the Feedback page.
Write an Entry
"The Hitchhiker's Guide to the Galaxy is a wholly remarkable book. It has been compiled and recompiled many times and under many different editorships. It contains contributions from countless numbers of travellers and researchers."