Astronomy & Space - October 2007

How much fuel was used to prevent the lunar module from crashing into the moon?

It is common knowledge that the moon has no atmosphere and has 1/6th earth gravity.

2007-10-11 13:05:03 · 5 answers · asked by asndude7 2

In the next couple hundred years?

2007-10-11 12:58:50 · 9 answers · asked by stuie 3

name,date of birth and others

2007-10-11 12:48:53 · 1 answers · asked by Anonymous

2007-10-11 12:15:27 · 4 answers · asked by katgirl0306 1

Can any events that happen outside our solar system affect us on earth?

A supernova would be a bright light in the sky but would it be harmful in any way? Are there any other interstellar events that might be harmful to the earth?

2007-10-11 12:07:42 · 7 answers · asked by Jeffrey K 7

Disclaimer: I'm not trying to cheat or anything, I just need a few of these problems done with work shown and explained to me.

1)What is the length of a light-year in meters?

2)How many years and seconds does it take light to travel from the star Alpha Centauri to Earth? (25.8 trillion miles away)

3)Approximatly 4x10^9 kg of matter is converted to energy in the sun each second. At this rate how long should it take to have all of the suns energy converted to mass? (I don't know what you need to know in terms of what is necessary to complete this problem, but there is a lot of numbers about it on wikipedia ie. volume etc...)

4)How many kms in one parsec? How many light-years

Okay, last one

5) Suppose you have a mass of 70 kg on Earth. How much would you wigh in pounds and Newtons on the surface of a white dwarf star, the same size as Earth, but having a mass 300,000 times that of Earth (nearly the mass of the sun)?

Okay, thats it, I'm going to post this in 2 places.

2007-10-11 11:52:35 · 3 answers · asked by Anonymous

My latest attempt to understand the big bang theory: so if all the matter was in this tiny space...wouldn't it all condense to form a black hole...you know the process of gravitational collapse.

*sigh* if only I took physics as a major in college......

2007-10-11 11:45:42 · 6 answers · asked by Sam 6

list you source plz...

2007-10-11 11:41:31 · 9 answers · asked by Hy34lif3™ 2

Advanced technology is needed to keep a
telescope, travelling at almost 30 000 km/h
while orbiting Earth, aimed steadily at one
tiny spot for a long time. this is for grad 9 science

2007-10-11 11:38:56 · 3 answers · asked by Anonymous

i also want to know what might be the advanige of each alternative. this is for grade 9 science

2007-10-11 11:36:39 · 1 answers · asked by Anonymous

like you can see and not see some sun rays...but what is the word that you can see the waves?

2007-10-11 11:07:22 · 3 answers · asked by lisa 1

2007-10-11 10:16:17 · 29 answers · asked by Anonymous

Our sun is big. But compare to some of these known stars, the sun is relatively small. What makes these stars so big? Is it just more matters and different gravitational pull? Please share your thoughts. Thanks :)

http://www.youtube.com/watch?v=YL4cFjmnQT8
http://en.wikipedia.org/wiki/List_of_largest_stars

2007-10-11 09:49:45 · 3 answers · asked by Sandy ♥ - semi retired :) 7

If humans at one time could travel at the speed of light and made their way across the galaxy, then the world wich they have left would be completely diffrent then the world at which they returned. If this is the case it answers many of the unaswered questions from the items that we have found from the past. Such as the Crystal Skulls from the Myans and the Pyramids found across the world. If the world at one time was advanced and was hit by a meteor or such, it would change the axis. The world at which we are walking now was at once the artic and the artic at one time was the Rainforests of yesterday. When Humans are displaced they make what is comfortable to them and what they know. This is why we find Pyramids across the world. If you lost everything you would still build a house and a bed however you would have lost the ability to create the elaborate creations of which you once had. Just Think about

2007-10-11 09:04:23 · 7 answers · asked by truckeroif2 1

I am working on a couple of papers and am not sure which star formations I want to write about, what are some of your favorites?

2007-10-11 08:58:51 · 3 answers · asked by Whoa 2

2007-10-11 08:54:50 · 3 answers · asked by CSSM girl 1

When it is closest to earth, venus is ~90million km away. How long does it take a radar signal to go out to venus and return?


Please help :D Im not sure if i need a formula but i cant find anything about it in my text book.

2007-10-11 08:46:44 · 5 answers · asked by kelly 2

Will the human mind ever be able to really grasp it?

2007-10-11 08:43:51 · 10 answers · asked by Anonymous

2007-10-11 07:53:05 · 19 answers · asked by Lorna 2

...then human being first developed during which month of the year???



Does anybody know the answer for this??? This is one of the questions from my astronomy test

2007-10-11 06:38:49 · 19 answers · asked by G@BY 1

move?

2007-10-11 06:32:51 · 10 answers · asked by Anonymous

2007-10-11 06:00:41 · 7 answers · asked by Anonymous

2007-10-11 05:39:04 · 9 answers · asked by Anonymous

2007-10-11 04:56:38 · 10 answers · asked by Anonymous

How does it use to move forward?

2007-10-11 04:45:34 · 7 answers · asked by Anonymous

How were we able to determine the size of the milky way? I heard that we have not sent any shuttles or probes that far out so how did we know how many arms it has, the size, and where we are located within the milky way?

2007-10-11 04:11:59 · 7 answers · asked by Krissy 6

Hypothetical" Let's say we find a way to send a satellite a decent percent of the speed of light, so that it could reach another star within a human lifetime, and beam back anything interesting it learns. A human going along is out of the question, since you'd need to build something much more massive to keep them alive for the trip, and a return trip isn't really practical, either. Which star are we going to visit?

Proxima Centauri is the closest at 4.22 light years, so we'd hear back the soonest, but it can't be the most interesting star within a reasonable distance. Gliese 876 we know to have at least three planets, and it's only about 15 light years away, so is that the obvious choice?

2007-10-11 04:05:37 · 8 answers · asked by Eli 6

2007-10-11 03:02:27 · 5 answers · asked by Zoran N 1

2007-10-11 02:33:21 · 10 answers · asked by Autumn 1

The one discovered and mentioned in the New York Times, on June 19, 1982. If you have seen it, where sould I look to locate it in the night time sky.

2007-10-11 02:31:13 · 5 answers · asked by Yahoo 4