'Dark energy' targeted in European space mission
A clear separation between dark and ordinary matter is seen 5.7 billion light years from the Earth from the Hubble Space Telescope in 2008. So-called dark energy, believed to play a role in the accelerated expansion of the Universe, will be studied in a major science mission to be launched later this decade, the European Space Agency (ESA) said on Tuesday.
So-called dark energy, believed to play a role in the accelerated expansion of the Universe, will be studied in a major science mission to be launched later this decade, the European Space Agency (ESA) said on Tuesday.
A space telescope known as Euclid will be launched in 2019 with the goal of mapping the geometry of the Universe across an unprecedented 10 billion light years.
It will seek insights into the history of the Universe's expansion and dark energy's impact on the structures of galaxies.
Saul Perlmutter and Adam Riess of the United States and US-Australian Brian Schmidt on Tuesday co-shared the Nobel Prize for Physics for using a type of supernova for measuring the expansion of the Universe after the "Big Bang."
In 1998 their conclusion that the Universe's expansion was speeding up, rather than decelerating as expected, took a hammer to conventional thinking in astrophysics.
Dark matter, an outward-acting force that is believed to comprise nearly three quarters of the Universe, is the suspected cosmic accelerator.
Euclid joins other mission, Solar Orbiter, as the first ventures in ESA's "Cosmic Vision" plan for 2015-2025.
Solar Orbiter, a probe due to launch in 2017, "will venture closer to the Sun than any previous mission," ESA said in a press release.
"It is designed to make major breakthroughs in our understanding of how the Sun influences its environment, in particular how the Sun generates and propels the flow of particles in which the planets are bathed, known as the solar wind."
(c) 2011 AFP
-
From lemons to lemonade: Reaction uses carbon dioxide to make carbon-based semiconductor,
32 comments
-
Thioridazine kills cancer stem cells in human while avoiding toxic side-effects of conventional cancer treatments,
3 comments
-
SpaceX private rocket blasts off for space station (Update),
42 comments
-
Climate scientists say they have solved riddle of rising sea,
31 comments
-
SpaceX capsule has 'new car' smell, astronauts say (Update),
3 comments
-
Distance of planets from stars and revolution
1 hour ago
-
revamping general concept and cosmological principle
May 25, 2012
-
Transiting Exoplanet Light Curve
May 25, 2012
-
Math behind Theoretical Physics
May 24, 2012
-
Do we know whats at the center of galaxies yet?
May 23, 2012
-
Structure of the Milky Way?
May 20, 2012
- More from Physics Forums - General Astronomy
More news stories
Yale study concludes public apathy over climate change unrelated to science literacy
Are members of the public divided about climate change because they don't understand the science behind it? If Americans knew more basic science and were more proficient in technical reasoning, would public consensus match ...
1 hour ago |
not rated yet |
4
|
10 million years needed to recover from mass extinction
It took some 10 million years for Earth to recover from the greatest mass extinction of all time, latest research has revealed.
Space & Earth / Earth Sciences
1 hour ago |
not rated yet |
1
|
Sophisticated simulations predict future warming
The chances of our planet being hit by a global warming of 3 degrees Celsius by 2050 is as likely as it being hit by an increase of 1.4 degrees, new research shows. Presented in the journal Nature Geoscience, the British study ...
Space & Earth / Earth Sciences
May 22, 2012 |
4.4 / 5 (9) |
51
Aliens don't want to eat us, says former SETI director
Alien life probably isnt interested in having us for dinner, enslaving us or laying eggs in our bellies, according to a recent statement by former SETI director Jill Tarter.
Space & Earth / Space Exploration
May 25, 2012 |
4.4 / 5 (13) |
39
Kyoto Protocol architect 'frustrated' by climate dialogue
UN climate talks are going nowhere, as politicians dither or bicker while the pace of warming dangerously speeds up, one of the architects of the Kyoto Protocol told AFP.
May 23, 2012 |
3.7 / 5 (7) |
39
Computer model used to pinpoint prime materials for efficient carbon capture
When power plants begin capturing their carbon emissions to reduce greenhouse gases and to most in the electric power industry, it's a question of when, not if it will be an expensive undertaking.
'Unzipped' carbon nanotubes could help energize fuel cells, batteries
Multi-walled carbon nanotubes riddled with defects and impurities on the outside could replace some of the expensive platinum catalysts used in fuel cells and metal-air batteries, according to scientists at ...
T cells 'hunt' parasites like animal predators seek prey, study shows
By pairing an intimate knowledge of immune-system function with a deep understanding of statistical physics, a cross-disciplinary team at the University of Pennsylvania has arrived at a surprising finding: T cells use a movement ...
Same gene that stunts infants' growth also makes them grow too big: research
UCLA geneticists have identified the mutation responsible for IMAGe* syndrome, a rare disorder that stunts infants' growth. The twist? The mutation occurs on the same gene that causes Beckwith-Wiedemann syndrome, which makes ...
Change in developmental timing was crucial in the evolutionary shift from dinosaurs to birds: study
At first glance, it's hard to see how a common house sparrow and a Tyrannosaurus Rex might have anything in common. After all, one is a bird that weighs less than an ounce, and the other is a dinosaur that ...
Scientists develop ultra-sensitive test that detects diseases in their earliest stages
Scientists have developed an ultra-sensitive test that should enable them to detect signs of a disease in its earliest stages, in research published today in the journal Nature Materials.
Oct 04, 2011
Rank: 5 / 5 (3)
Oct 04, 2011
Rank: 1 / 5 (11)
is worthy of a Nobel Prize, because . . .
It confirms that neutron repulsion [1] causes neutrons to be emitted faster from smaller fragments of parent neutron stars - as water evaporates faster from smaller water droplets - in our infinite, cyclic cosmos [2].
1. "Neutron repulsion", APEIRON Journal, in press (2011)
http://arxiv.org/...2.1499v1
2. "Is the Universe Expanding?", Journal of Cosmology 13, 4187-4190 (2011)
http://journalofc...g102.htm
With kind regards,
Oliver K. Manuel
Former NASA Principal
Investigator for Apollo
http://myprofile....anuelo09
Oct 04, 2011
Rank: 4.3 / 5 (6)
You're not even an igNobel, you're so wrong.
Oct 04, 2011
Rank: 5 / 5 (3)
I agree, for a short article, it's a mess. A small amount of review would've helped.
Oct 04, 2011
Rank: 3 / 5 (2)
Some physicists are making money with the opposite stance:
Dark Fluid: Dark Matter And Dark Energy May Be Two Faces Of Same Coin, Is Dark Matter & Dark Energy the Same Thing?
http://www.scienc...4056.htm
http://www.dailyg...att.html
Oct 04, 2011
Rank: 2 / 5 (4)
http://people.rit...4565.jpg
But from perspective of the observer at the water surface, who is using the surface ripples for observation the same phenomena appears like expansion of space-time with distance with accelerating speed, i.e. like the dark energy.
Oct 04, 2011
Rank: 4.4 / 5 (7)
Indeed it DISPROVES you. Can't have a cyclic universe that has ACCELERATING expansion.
So just how do Neutron Stars form when neutron repulsion is alleged by you to be so powerful that it stops Black Holes from forming no matter how large the mass?
Ignoring the question won't magically make you right Oliver. The ideas are contradictory and I bet even the Plasma Universe Cranks can see that now that it has been pointed out.
Join The Cause. Force Physorg To Enforce Their Own Rules On Oliver.
COUNTER SPAM OLIVER NOW.
Ethelred
Oct 04, 2011
Rank: 5 / 5 (5)
So just go back to Ether, admit that there's no experimental way to detect it or interact with it -- and therefore no useful VERIFIABLE theory of its structure can be constructed -- and leave it at where it's been for the last 100 years.
Oct 13, 2011
Rank: 1 / 5 (1)
Oct 14, 2011
Rank: 4 / 5 (3)
Or I could put my own way.
Its just numbers. The numbers that constitute the Universe work in such away the numbers that constitute humans beings perceive those numbers as reality. We can drill down through the layers of numbers that emerge from other numbers until finally we reach a point where the numbers are all there is. The numbers are the way they are because those numbers CAN form a viable universe so do they exactly that.
Not because something makes it so but because nothing stops it from being so. That is, since it can exist why wouldn't it.
To quote others here. Hey its just a thought.
But not in this case, because in this case, its just numbers.
Or if I was to post it all the bloody time it would just be Cranking.
Ethelred
Oct 14, 2011
Rank: 4 / 5 (2)
Numbers are human constructs; they don't actually exist in reality. They are human constructs every bit as much as any other cognitive abstraction, such as every single word in this post.
Numbers -- and the rules that govern them -- are useful modeling tools, in that they allow us to construct complex models of reality at a certain level of experience: where reality is discrete and distinctly quantized. Whether that is true at the deepest levels, remains to be seen; for all we know, the true underlying fabric of the cosmos might still be 'analog' rather than 'digital' -- or perhaps neither, empirically inaccessible, and altogether out of our human range of experience and thus utterly indescribable via numbers or any other sort of experience-derived modeling tool.
@Daleg,
The answer to your inquiry is that we don't know. And it's possible that we will never know. Then again, we might find out within the next hour. Isn't that exciting? :-)
Oct 15, 2011
Rank: 3 / 5 (2)
That is one way to look at it. It is not the only way. Change your point of view and then this will make more sense to you.
Analog is still numbers. There is an infinite quantity of irrational numbers for every real number AND this would be true whether humans, or any other math user, existed or not.
Basically you are mistaking human communication via numbers for the principles that produce those numbers no matter who does the looking.>>
Oct 15, 2011
Rank: 1 / 5 (1)
Oct 15, 2011
Rank: 3.5 / 5 (2)
Look at this way.
An analog measurement of current is a just the amount a dial get deflected BUT it is actually just a sloppy way to count the number of electrons passing a given point.
Can you HAVE an infinitely small slice of time? At present it seems reasonable that there is a minimum time scale called Planck Time. However if you want to go what may be a completely meaningless shorter time scale well I didn't bring up irrational numbers for nothing. They are infinitely long but still are actual numbers.>>
Oct 15, 2011
Rank: 5 / 5 (1)
Exactly, that was first put forth by a Greek named Xeno. That is where calculus came from. The concept of limits.
I finished reading a book on that a couple of weeks ago.
The clockwork universe : Isaac Newton, the Royal Society, and the birth of the modern world / Edward Dolnick.
http://ipac.anahe...term=The clockwork universe %3A Isaac Newton%2C the Royal Society%2C and the birth of the modern world %2F&index=ALLTITL
I wonder if the link will work.
Ethelred
Oct 15, 2011
Rank: 2.3 / 5 (3)
Ethelred
Oct 15, 2011
Rank: 1 / 5 (1)
Oct 15, 2011
Rank: 1 / 5 (1)
You need, in other words, a pre-existing non-numerical framework that serves to give rise to numerical dynamics. But then, what is the truly fundamental construct: the underlying framework, or the secondary processes that it would hypothetically engender?
And that's just one way to approach it...
Oct 15, 2011
Rank: 3.5 / 5 (2)
True. BUT it seems likely to me that space-time is a fundamental property of Universe OR maybe we are really lucky and it isn't. I don't think it would be possible to manipulate such a fundamental property of a universe unless it is an emergent property of something even more fundamental.
Ethelred
Oct 15, 2011
Rank: 1 / 5 (1)
The correct response is not to weave "answers" out of fantasies and thin air, but to simply admit the objective truth: we do not know. Period.
Oct 15, 2011
Rank: 2.3 / 5 (3)
No. That isn't in the math. Its in the Copenhagen Model which I think is crap and more scientist than ever agree on that.
That is not from QM. It is from GR and only with an open Universe and even there in an expanding universe it is not infinite.
Borders have problems. You get effects near borders that don't occur away from the borders. So banishing them makes the math easier and the theory uniform for all the Universe.>>
Oct 15, 2011
Rank: 2.3 / 5 (3)
I don't see that.
I was expecting to see that error. A grid simply makes it easier. String Hypothicists claim it can be done without a grid. I see no reason that grid has to exist.
Nah. I suspect it makes it easier to deal with though.
Local exchange. No grid needed and the means can be contact.>>
Oct 15, 2011
Rank: 2.3 / 5 (3)
No. Just claiming it does not make it so.
Math.
Actually it was way to make it all go away with unneeded assumptions or rather a need to make the idea go away was the basis of the assumptions.
Ethelred
Oct 15, 2011
Rank: 2.3 / 5 (3)
Not really.
Or may never be answerable. In either case. AT THE MOMENT, they are not PRESENTLY science questions. What is limited to philosophy changes over time.
Wrong. The reason it is wrong is that philosophical reasoning can lead to seeing a way to test the ideas at which point they become science. It is often an attempt to grasp at what we can know even if, indeed especially if, it cannot done at the moment.>>
Oct 15, 2011
Rank: 2.3 / 5 (3)
Ethelred
Oct 16, 2011
Rank: 1 / 5 (1)
Numbers are an approximation of real analog values. Pi for example can only precisely be described without using numbers.
Oct 16, 2011
Rank: 1 / 5 (1)
Indeed and confirms that special techniques (tricks?) are required for Math and numbers to match real analog signals/values. Xeno/Zeno simply showed that using numbers we could never reach a destination and therefore are not a precise representation of analog reality.
As long as I don't drink all the beer in my glass in one long gulp (tempting as it is), there will always be some left is demonstrably not true (though i can dream) because I'm going to the shops now to buy a six pack for tonight.
Oct 16, 2011
Rank: not rated yet
Oct 16, 2011
Rank: 1 / 5 (3)
Oct 16, 2011
Rank: 5 / 5 (1)
Oct 16, 2011
Rank: 5 / 5 (1)
That is my preferred local library. About a mile or three north of Disneyland. The main reason I read it was to get another perspective on the time period from the one I got in Neal Stephenson's Baroque Cycle.
Only with some things. Well most things are curves so most things. Again Planck's constant can take care of that. They are tricks only the mathematical sense.
Ethelred
Oct 16, 2011
Rank: 5 / 5 (1)
Why do you keep lying about everyone that disagrees with you Oliver? Did you learn that from Lysenko?
Now about those questions you would rather lie about others than deal with. Here is the most recent one you have been evading in your cowardly Lysenko trained way.
You have made it quite clear that you think there is something you call neutron repulsion and it stops the formation of Black Holes. If Black Holes are stopped by NR then Neutron stars couldn't exist either. Of course there are all those claims that NR is causing galaxies to fragment and you spammed the site with that dozens of times.>>
Oct 16, 2011
Rank: 5 / 5 (1)
For NR to stop the formation of Black Holes and cause the fragmentation of galaxies then it is stronger than gravity at both the range of a dozen kilometers and at kiloparsecs. This means that not only does it shatter galaxies but they could not form in first place. Planets could not form and ALL gravity bound objects would be sundered by this hypothetical galaxy busting Black Hole blocking force.
Ethelred
Oct 16, 2011
Rank: 1 / 5 (4)
1. "The Sun's origin, composition and source of energy", 36 LPSC 1041 (2001)
www.omatumr.com/lpsc.prn.pdf
2. "Super-fluidity in the solar interior: Implications for solar eruptions and climate", JFE 21, 193-198 (2002)
http://arxiv.org/.../0501441
3. "Is the Universe Expanding?" The Journal of Cosmology 13, 4187-4190 (2011)
http://journalofc...102.html
4. "Neutron Repulsion", The APEIRON Journal, in press (2011)
http://arxiv.org/...2.1499v1
5. "Origin and Evolution of Life Constraints on the Solar Model", J
ournal of Modern Physics 2, 587-594 (2011)
http://dl.dropbox...5079.pdf
With kind regards,
Oliver K. Manuel
Former NASA Principal
Investigator for Apollo
http://dl.dropbox...reer.pdf
Oct 16, 2011
Rank: not rated yet