Astronomy & Space - September 2007

2007-09-27 11:46:43 · 7 answers · asked by mirokuzlover 1

2007-09-27 11:17:13 · 12 answers · asked by peaches6 7

...the inability to feasibly achieve a greater speed, or the inability to protect the vessel from micro-impacts? I'd like to hear ideas on what kind of shielding would be needed at speeds of 300 to 3000 Km/sec., considering what would be the effect of hitting a micrometeoroid at that speed. Or even the effect of interstellar gas, as sparse as it may be. Also, would there be any practical way of detecting a dangerous object which would destroy any reasonable sized shield, in time to alter the ship's course the tiny amount needed to avoid it? Say, for example, the size of a baseball.

2007-09-27 10:58:34 · 8 answers · asked by Brant 7

if you dont know what that is then google it.
Now i do believe in extraterrestrial life. Reason being that there is no possible way that we are the only social beings in the universe. If there is photographic proof the other galaxies and all that other good stuff, then why would this Earth be the only place life is? It just would make sense at all. Now if you think otherwise, what is your reason for the Earth being the only planet in the universe with life?

2007-09-27 10:48:40 · 13 answers · asked by Anonymous

2007-09-27 10:45:53 · 8 answers · asked by mastershevchenko 1

I've began taking a very keen interest in UFOS, the planets in our solar system, the moon, the possibility of life on other planets, and astronomy in general, but I have no idea where to start!

I'd love to invest in some equipment, most notibly a telescope but again I wouldnt know where to start, and what capabilities one would have - For instance would I be able to see any of the planets in our solar system, and how detailed would the moon apear?

Any tips in general?

Im only 17 so my 'budget' isn't too large. I could probably stretch to just over £200.

2007-09-27 10:30:05 · 11 answers · asked by Anonymous

I am doing a report on comets for my eighth grade science class and I was wondering when the next cometr will come. It can be any one. Whoever has the right answer first will be awarded best answer. Thank you very much, I would greatly appreciate the information.

2007-09-27 10:06:22 · 6 answers · asked by Anonymous

so, where are names -ie: mercury, earth, venus--etc not dpk10003?

2007-09-27 10:05:06 · 4 answers · asked by Anonymous

2007-09-27 10:04:58 · 3 answers · asked by higherlovetx 5

Carl Sagan once said that it was hubris for us to believe the Earth was the only planet in the universe that was inhabited. He also put forth a mathematical formula regarding the probability of other inhabitable planets in the universe. Does anyone know his exact statement and the mathematical formula?

2007-09-27 09:42:49 · 4 answers · asked by CarolSandyToes1 6

2007-09-27 09:20:28 · 8 answers · asked by KeepingTheFaith♥ 4

did life, that requires oxygen, start. ie: All living things need oxygen, including plant life, and plants make oxygen during daylight hours, Yes ?, but what gave plant forms, the oxygen that they required before they could even exist. Hey! come on you clever little so & so's.

2007-09-27 08:54:16 · 21 answers · asked by jerbal 1

O.k. - here's the idea: An External Pulsed Plasma Propulsion engine is constructed in space. It's sole purpose is to get to Alpha Centauri as quickly as possible. It's sole payload is a device for taking images in all spectra of light (from radio, through visible, infrared, ultraviolet, etc.). Just send it there, and get some awesome data back.

I think present technology would allow us to build such a craft. I think I heard that such a craft could make it to Alpha Centauri in about 100 years. However, even in 20 years or so, we'd be able to get some tremendously groundbreaking images en route.

Should we build such a craft? Could we get it to go faster, so maybe it could make it to Alpha Centauri in 25 years?

2007-09-27 08:48:25 · 15 answers · asked by Anonymous

It collapses to a diameter of 10,000 kilometers, and it rotating at 10 revolutions per second.

What is the speed in kilometers per second at the equator?

2007-09-27 08:27:44 · 7 answers · asked by Feeling Mutual 7

Any picture too proof it or can there be no picture if it

2007-09-27 08:15:07 · 8 answers · asked by Ireqiredlotofhelp 1

2007-09-27 08:05:58 · 9 answers · asked by your_dear_old_mother 5

How do you think the universe was created.. religious or non-religious beliefs can be used

2007-09-27 08:05:35 · 10 answers · asked by Anonymous

It obviously happened, since all evidence points to it (CMB radiation, for example) - but what triggered it? Has matter/energy always existed, and in what form? What about time? How did things start, without time? (if that makes any sense at all - I'm probably asking this wrong).

How much of this can I understand without understanding too much about quantum physics?

Where can I find information that addresses the difficult questions, but that I can still follow?

2007-09-27 07:24:34 · 14 answers · asked by Dreamstuff Entity 6

2..is the earth still forming?

2007-09-27 07:07:06 · 5 answers · asked by Anonymous

2007-09-27 07:04:15 · 7 answers · asked by bagua1 5

2007-09-27 06:48:19 · 2 answers · asked by morningwillowkisses 2

2007-09-27 06:18:56 · 20 answers · asked by Anonymous

2007-09-27 05:54:56 · 8 answers · asked by Anonymous

2007-09-27 05:31:52 · 20 answers · asked by madnsane 2

On a truly cosmic scale every point would be surrounded by an equal amount of mass in every direction, and so would be "pulled" equally by gravity in all directions. Would this cancel out so the net force on each point would be zero. This would seem to apply irrespective of the shape of the universe, or even if the universe was infinite.

Surely there must be something wrong with my reasoning since if it would preclude the possibility of a "Big Crunch" and I would like to know my error

2007-09-27 05:22:40 · 5 answers · asked by Anonymous

As science advances, intelligent life will be discovered. The SETI project will eventually prove it, and it could happen in just a few years. The search for planets on other stars first found one, then another, then hundreds. The same will happen in the search for extra-terrestial intelligent life.

2007-09-27 05:06:57 · 23 answers · asked by kimmyisahotbabe 5

2007-09-27 04:54:05 · 3 answers · asked by anantharaman k 1

2007-09-27 04:13:12 · 2 answers · asked by Mr C 1

I've be recently told that Cancerians are strongly effected by the Moon. Over the last week and the beginning of this week my moods have been all over the place. Last night there was a full moon and today I'm back to normal.

2007-09-27 03:54:52 · 20 answers · asked by Anonymous

We all know hubbles constant, and hubbles law, right? But what is the purpose of it, besides the relationship between distance, velocity and his constant. Why did Edwin invent hubble's constant?

What's a red shift/Blue shift? I'm having problems understanding that aswell. So as the galaxy moves away, the light it emmits shifts towards the red spectrum, but why does the spectrum shift?

The probable origins of the universe are most likely from the Big Band, and I see how Hubble said that with these red shifts, the distance is getting greater between us, which suggests that the universe is expanding.

Also, outta curiousity, if the universe was expanding, including us, wouldn't the density change = 0, relative to all matter?

And if black holes squash matter to the size of a hydrogen atom, wouldn't that mean that the amount of matter is gonna be reduced to nothing, and energy is destroyed in the process, which cancells the law of conservation of energy?

2007-09-27 03:51:27 · 4 answers · asked by Suki 4