Supernovae Survey Provides New Clues To Nature Of Mysterious Dark Energy

Science Daily ^ | 18 September 2003 | Vanderbilt University

[PatrickHenry]

PING. [This ping list is for the evolution side of evolution threads, and sometimes for other science topics. FReepmail me to be added or dropped.]

[y2k_free_radical]

BIG BANG=GOD CREATED THE HEAVENS AND THE EARTH

[Alamo-Girl]

Thank you so much for this excellent article! Hugs!!!

I wish you would ping me when you post cosmology, physics or astronomy articles... hint hint.

[ovrtaxt]

"As far as the ultimate fate of the universe goes, the most straightforward conclusion is that over the next few billion years it is going to become an increasingly thin, cold and boring place,"

Sounds like the ultimate fate of the Democratic Party.

Or Hillary's underpants, except for the 'thin' part.

[PatrickHenry]

I've only got one ping list, but it doesn't discriminate between crevo threads and other science topics. You're now on it. Number 101.

[colorado tanker]

You don't know the power of the Dark Side.

[js1138]

...over the next few billion years it is going to become an increasingly thin, cold and boring place...

They've been saying that for billions of years. I'll believe it when I see it.

[Aracelis]

From the abstract: "The precision of the measurements is such that it is possible to perform a host-galaxy extinction correction directly for individual supernovae without any assumptions or priors on the parent E(B-V) distribution."

Interesting...thank you for the ping.

[Consort]

That's what causes inflation.

[Alamo-Girl]

Thank you!!!

BTW, I'm speculating that dark energy - which is characterized as negative gravity - is a phenomenon of an extra time dimension. Constraints on Extra Time Dimensions

My reasoning (using the numbers from earlier this year):

Dark matter which represents 23% of the mass of the universe is like ordinary matter (Higgs boson/field theory, etc.) which represents 4% in that they are both characterized by positive gravity. Dark matter is a more extreme manifestation in space, e.g. black holes and massive neutrinos (if any.) Dark Matters

On the other hand, dark energy which represents 73% of the mass of the universe is characterized by negative gravity and thus, acceleration.

And much like there is a duality between particle and wave - there is a "duality" between gravity (field) and space/time.

In fact, one should view gravity as a warping of space/time that causes objects to orbit and spin into the space/time indentation caused by higher, positive gravity. Conversely, viewed as an indentation of space/time a certain escape velocity is necessary to free ordinary matter from the indentation. In black holes, not even light has sufficient escape velocity.

When we look at gravity as space/time then Einstein's desire to transmute the "base wood" of matter into the "pure marble" of geometry becomes accessible.

In the space "vacuum" which accounts for 73% of the mass of the universe, gravity (space/time) is negative, causing acceleration and strongly suggesting something else factoring into the balance. betty boop's extra time dimension fits that speculation to a "T".

Moreover, it potentially utterly solves the mysteries of non-locality, superposition and absence of dark energy in local space.

My two cents...

[SmithW]

Nonsense!

[inquest]

The new study narrows this range to 68 to 81 percent dark energy and 19 to 32 percent miscellaneous matter.

Something's just not making sense to my untrained mind. The impression that I get from this article is that nobody seems to know what this "dark energy" is. Yet they can confidently compare it to matter using the same units of measurement and not be worried that they're comparing apples and oranges? Somehow, it's exhibiting a repulsive force, and they're concluding its quantity from the action of that force. This to me seems like gauging the mass of an object from its gravity without knowing the gravitational constant.

[Prof Engineer]

Nonsense!

That's not much of a way to counter a logical argument.

[r9etb]

Or Hillary's underpants, except for the 'thin' part.

As mauch as they've got to stretch -- they're mighty thin. Either that or she's able to turn boxer shorts into thongs....

[js1138]

On the other hand, dark energy which represents 73% of the mass of the universe is characterized by negative gravity and thus, acceleration.

No doubt the cause of the giant sucking soundemitted by black holes.

[Alamo-Girl]

Congratulations on your marriage!

[Alamo-Girl]

Thank you for sharing your view!

[<1/1,000,000th%]

The impression that I get from this article is that nobody seems to know what this "dark energy" is. Yet they can confidently compare it to matter using the same units of measurement and not be worried that they're comparing apples and oranges?

And it explains both gravitational attraction within galaxies where there doesn't seem to be enough matter, and repulsion of faraway galaxies from other galaxies. So it is both attractive and repulsive depending on context.

This is great stuff. I also noticed no one is working on the MATS (mysterious attraction towards the sun) problem. This is the discrepancy in the r-squared law for gravitational force measured with the Pioneer, Voyager and Cassini space-craft. What a great time to be alive and doing science!

[Alamo-Girl]

Thank you so very much for that link! It dovetails quite nicely with my other musings: Origins and Scriptures!