NASA (will) Release New Findings About Dark Energy -- AMIGA Astronomy

[ Show ]

Support VoyForums

[ Shrink ]

VoyForums Announcement: Programming and providing support for this service has been a labor of love since 1997. We are one of the few services online who values our users' privacy, and have never sold your information. We have even fought hard to defend your privacy in legal cases; however, we've done it with almost no financial support -- paying out of pocket to continue providing the service. Due to the issues imposed on us by advertisers, we also stopped hosting most ads on the forums many years ago. We hope you appreciate our efforts.

Show your support by donating any amount. (Note: We are still technically a for-profit company, so your contribution is not tax-deductible.) PayPal Acct: Feedback:

Donate to VoyForums (PayPal):

[ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1 ]

Subject: NASA (will) Release New Findings About Dark Energy

Author:
Blobrana

[ Next Thread | Previous Thread | Next Message | Previous Message ]

Date Posted: 16:48:14 05/15/04 Sat

Hum, they`ve have found something about the mysterious force called Dark Energy...
They'll `spill the beans` at 1 p.m. EDT, May 18th, in a special press conference (Webb Auditorium, NASA Headquarters).
Seems as if they've used `a powerful and independent method` to probe dark energy using NASA's Chandra X-ray Observatory.
These results on cosmic acceleration provide clues about the nature of dark energy and the fate of the universe.
Dark Energy is an unidentified `anti gravity` that is stretching the fabric of space-time. All the evidence � since the discovery of the universe�s accelerating expansion � has added up to an unsettling cosmic recipe: 4 percent ordinary matter, 23 percent dark matter, and 73 percent dark energy.
Five billion years ago, dark energy became the dominant force in the universe, expanding space and rendering it ever more difficult for gravity to dominate ordinary matter.
As time goes by, dark energy dilutes the matter in our universe, galaxy clusters should become fewer and farther spaced out. So if we survey clusters that predate the onset of dark energy, we should find many more than exist today. A recent study found significantly fewer � suggesting that matter has continued to gravitationally coalesce over time, that there is four times as much dark matter as previously believed, and that dark energy is nothing more than a fantastic illusion.
But,
Perhaps astronomers don�t fully understand the behaviour of galaxy clusters. Or perhaps that particular survey was not representative of the average number of clusters in the young universe. And it looks like the Chandra space telescope has ] found evidence...
Either way the new results should be an eye opener...

[ Next Thread | Previous Thread | Next Message | Previous Message ]