Astronomy & Space - March 2007

I have read some on asteroid composition, and there seems to be a lot we DON'T know. I do know that there are a lot of different types of near earth objects and different components of our asteroid belt.
From what I have been given to understand, metals like platinum and iridium have a lot of industrial uses, but what other metals could be found up there that are relatively rare on our planet?

2007-03-07 05:01:26 · 3 answers · asked by Random Guy from Texas 4

Can it be defined? Does it only go foward...or is this only our perception and understanding of "time"? Surely, we know the Earth's orbit about the sun comprises our 24 day, seasons, and such. But, what is time itself? What was it before we could track it, to the best of our finite abilities? Was it anything? Or is time just a concept we have created as humans to make us feel more in control of the sphere we occupy in physical form?

2007-03-07 04:54:01 · 3 answers · asked by Anonymous

2007-03-07 04:47:59 · 6 answers · asked by Anthony C 1

1) The spectrum of a certain star is measured. An absorption line is noted at 655nm in the spectrum of the star.The same absorption line is found at 642nm in a spectrum measured in a laboratory. Is the star moving towards or away from the Earth? What is the velocity of the stars motion towards or away from the Earth?

2) The spectrum of a certain star is measured. An absorption line is noted at 456nm in the spectrum of the star.The same absorption line is found at 468nm in a spectrum measured in a laboratory. Is the star moving towards or away from the Earth? What is the velocity of the stars motion towards or away from the Earth?


So, if the numbers grow does it mean that it is moving away from the Earth? Also, is there a good formula to figure these kind of questions out? Thank you for your help!!!

2007-03-07 04:36:33 · 2 answers · asked by Lilith_Angel 2

If all the mass+energy was in the same point at the bigining, how it can expanded? Does it means that THE BIGGEST BLACK HOLE can explode?

2007-03-07 04:35:17 · 11 answers · asked by Anonymous

Please, do not mention the Sun.

2007-03-07 04:15:04 · 3 answers · asked by Alexander 6

2007-03-07 04:14:43 · 5 answers · asked by Anonymous

2007-03-07 03:58:57 · 5 answers · asked by rui h 1

2007-03-07 03:58:25 · 4 answers · asked by rui h 1

2007-03-07 03:57:58 · 4 answers · asked by rui h 1

new ?a first-quarter moon ?a waxing crescent ?

2007-03-07 03:57:14 · 7 answers · asked by rui h 1

2007-03-07 03:56:06 · 1 answers · asked by rui h 1

this is for 10 bonus points... i couldn't find it on the internet. PLEASE HELP ME.

2007-03-07 03:51:06 · 8 answers · asked by blondechick4life_12 1

2007-03-07 03:46:44 · 9 answers · asked by victor 1

I just want to know how hot is a asteroid impact explosion,i read that it really really hot went it impacts,they say that if it 10 miles wide moving at 75,000mph,it can vaporizes anything within many hundreds of miles,how hot is a explosion from a asteroid impact compar to a nuclear blast,i have read that it can be 4 to 700 times hottest then the surface of the sun,but can it be millions of degress like a nuclear blast is.

2007-03-07 03:34:31 · 5 answers · asked by carlos sims 2

2007-03-07 03:20:39 · 15 answers · asked by mkvidinli 1

I like saturan because it has beautiful brown rings

2007-03-07 02:50:26 · 9 answers · asked by Anonymous

2007-03-07 02:49:53 · 3 answers · asked by saw3 1

That is we reach Sunday November 4th at 1:00am. The time until 1:59:59am will be in DST. Then the clock will roll back to 1:00am. The time until 1:59:59am is in standard time or DST?

2007-03-07 01:36:01 · 3 answers · asked by GeekBoy 2

Plz give me correct spellings because this is for my project on celestial bodies.

2007-03-07 01:16:22 · 9 answers · asked by Shivani P 2

As we all know that earth revolves around sun and so as all other planets. But what happens if jupitar's gravity diverts earth's path and forces earth to revolve around itself (Jupitar). Because if i am not wrong then Jupitar has got planets almost similar to size of earth.

2007-03-07 01:07:17 · 18 answers · asked by Anonymous

2007-03-07 01:05:15 · 43 answers · asked by colin050659 6

2007-03-07 00:53:30 · 11 answers · asked by CATHERINE P 1

2007-03-07 00:50:08 · 8 answers · asked by Prove 1

2007-03-07 00:38:22 · 3 answers · asked by pappu 1

If black holes exist, and they suck up everything around them, they would soon suck in evething in the cosmos, and there would be nothing left, including the black hole it's self!!! And another thing, the warping of space can not be. Put four dots on a pice of paper, then fold it so the two furthest dots touch, everything in between them would collide!! Bye bye world.

2007-03-07 00:33:37 · 18 answers · asked by Anonymous

please help me
winning answer gets 5 points

2007-03-07 00:30:39 · 1 answers · asked by MillionaireKing09 2

how many moons? and temp ranges??

2007-03-07 00:19:15 · 3 answers · asked by Anonymous

Hi,
If aeroplane could be landed on water then it is good to reduce plane destructions. Recently in indonesia plan crash occured in this view I would like to ask is there any possibility to rescue plane through remotely or going with another plane nearer to the risky aeroplane when it is going in difficult situations.

2007-03-07 00:17:58 · 5 answers · asked by Narayan akul 2

Please help me its a science project
Person that answers will get 12 Points. tnx

2007-03-07 00:03:12 · 5 answers · asked by MillionaireKing09 2