Astronomy & Space - February 2007

Thanks for your info...Tom Science 4

2007-02-09 04:50:31 · 2 answers · asked by Anonymous

if space is growing, where does it have room to grow, what's beyond that? if our sun is a star, then could there be other planets around those stars?

2007-02-09 04:40:54 · 4 answers · asked by i just wanna rock 1

who died in the line of duty?

2007-02-09 04:21:32 · 10 answers · asked by baby got blue eyes 2

2007-02-09 03:16:44 · 16 answers · asked by Anonymous

that they observe to determine the direction a star is moving in if lght was constant would it not allways be white?

2007-02-09 03:15:39 · 7 answers · asked by Tony N 3

2007-02-09 03:13:30 · 12 answers · asked by nisarg b 1

He does not matter where the theory of the gravity of Newton if based, in which the bodies if attract reciprocamente with a force that was called mass; e each one is inversely proportional to the square of in the distance between them. I ask! This same gravity in the Land exists for the Sun, that only loses energies, but does not lose its gravitational forces of attraction for the bodies that had always kept its distancias? The American physicists say: The current theory is that the universe exists 92 billion years - and the sun converts 3.000.000 of tons of substance for energy each AS. The Brazilian physicists say: When the account of the mass becomes that the Sun loses, seems very, but relatively the mass of the sun, is only one minimum fraction. So minimum that its gravitational force practically remains unchanged during many millions of years. Tarcísio Brito says: that the Universe and finite in its dimension and the infinite in its time.

2007-02-09 03:04:17 · 7 answers · asked by britotarcisio 6

2007-02-09 02:58:17 · 7 answers · asked by Anonymous

I have read that astronauts use the diapers that everone has heard about only on take off and landing becuase these are crucial times that the astronauts can't aford to be away from their important duties in taking off and landing the spacecraft....

Well, takeoff and landing does not take that long.....can't they just "hold it" if neccesary???

2007-02-09 02:40:45 · 5 answers · asked by intruudir 1

2007-02-09 02:33:32 · 11 answers · asked by Buck Flair 4

2007-02-09 02:32:50 · 1 answers · asked by goring 6

And if so, what does this mean?

2007-02-09 02:27:48 · 4 answers · asked by Eleventy 6

Do you think we will contact other life in the universe in our lifetime?

2007-02-09 02:27:01 · 13 answers · asked by little_miss_mystical 2

2007-02-09 02:22:46 · 11 answers · asked by Russell 3

2007-02-09 01:53:25 · 5 answers · asked by keentoknow 2

2007-02-09 01:41:05 · 15 answers · asked by risingsun0707 1

What is the scientific explanation for false dawn, sometimes called pre-dawn twilight?

Thanks.

2007-02-09 00:57:46 · 1 answers · asked by Debbie Z 1

Tonight Saturn is supposed to be closest to Earth than ever before. They say that we are going to be able to see itwith the naked eye. How will I be able to pick it out of the sky? And do'nt tell me look for the rings.

2007-02-09 00:57:29 · 5 answers · asked by Kelz 3

2007-02-09 00:45:08 · 13 answers · asked by Anonymous

2007-02-09 00:42:37 · 6 answers · asked by Anonymous

2007-02-08 23:56:31 · 9 answers · asked by rickttees 1

This is what science says, from an article taken from Newscientist.com

What gruesome fate awaits our universe? Some physicists have argued that it is doomed to be ripped apart by runaway dark energy, while others think it is bouncing through an endless series of big bangs and big crunches. Now these two ideas are being combined to create another option, in which our universe ultimately shatters into billions of pieces, with each shard growing into a whole new universe. The model could solve the mystery of why our early universe was surprisingly well ordered.

One of the problems that cosmological models must explain revolves around the amount of disorder in the way that particles in our universe are arranged, which is marked by a quantity called entropy. Cosmologists believe that the universe started out in an ordered, low-entropy state after the big bang, and is gradually becoming more of a mess. But just why it started out so well ordered, when it is much more likely for particles and energy to be created in a greater state of disarray, is something of a puzzle.

The answer may be tied up with the way that universes are created and destroyed. The fate of the universe depends on how dark energy - the force thought to be driving the accelerated expansion of our universe - changes with time. If it increases without limit, it will eventually tear everything apart, destroying the universe in an event called the big rip. Now physicists Lauris Baum and Paul Frampton at the University of North Carolina in Chapel Hill are invoking this effect to explain how the entropy of our early universe might have been kept in check.

In their model, dark energy becomes very dense and sets the universe expanding at such a rate that it approaches the big rip. The universe tears into small patches that rush away from each other faster than the speed of light. But the destruction is then halted, as the density of dark energy becomes equal to the density of the universe. At this point, each patch crunches in on itself. "All the patches, of which there are a huge number, will separately contract into disparate universes," says Frampton. Each patch will then bounce outwards again, creating a new universe.

“The shards of our universe will crunch in on themselves, then each one will bounce outwards and create a new universe”Crucially, each patch only contains a fraction of the overall entropy of its parent universe - so each new universe starts out in a low entropy state, as required. The work will appear in Physical Review Letters.

Paul Steinhardt, a cosmologist at Princeton University, would like to see the model developed further. "I'm curious to see how far they can carry this idea," he says.

The theory will be put to the test when the European Space Agency's Planck satellite is launched in July 2008. The satellite will measure properties related to the pressure and density of dark energy that will distinguish the new model from the standard big bang picture, says Frampton.

This is what the Qur'an says:

"That Day We will fold up heaven like folding up the pages of a book. As We originated the first creation so We will regenerate it. It is a promise binding on Us. That is what We will do." (Qur'an, 21:104)

"They do not measure Allah with His true measure. The whole earth will be a mere handful for Him on the Day of Rising the heavens folded up in His right hand. Glory be to Him! He is exalted above the partners they ascribe!" (Qur'an, 39:67)

2007-02-08 23:00:19 · 14 answers · asked by allgiggles1984 6

Kids draw the sun with "rays", when we screw our eyes up to look at the sun, we see distinct lines coming out of the sun, and in reflections, the sun always has "rays" making it look star-shaped. Why is that when the sun is a ball of energy and surely the light from it should be constant / consistent / even?

2007-02-08 22:53:58 · 11 answers · asked by Clare 1

2007-02-08 21:18:15 · 10 answers · asked by cassy 1

2007-02-08 21:10:21 · 16 answers · asked by Anonymous

2007-02-08 19:35:33 · 15 answers · asked by Anonymous

2007-02-08 19:29:35 · 17 answers · asked by HimJoy 4

2007-02-08 19:07:54 · 4 answers · asked by nat1 1

I know the answer, do you?



hint: it's not 24 hours.

2007-02-08 18:47:10 · 14 answers · asked by snilubez 2

Are there any circumpolar stars in the Tropic of Cancer?
And are there any stars that we can never see?

2007-02-08 18:42:10 · 1 answers · asked by vickiee 1