Astronomy & Space (Science & Mathematics) - December 2006

When and where has anyone predicted that the earth rotates around the sun?Who predicted it for the first time?What nation was he from?About what year was he born in?

2006-12-25 12:22:46 · 21 answers · asked by maya 92 2

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do you believe in aliens?

if so, why?

2006-12-25 10:22:16 · 16 answers · asked by Anonymous

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Where on the internet can I find the postion of the planets in the sky at a specific time of day.?

I wany to know where I can find the planets with my telescope at a given time of night (or day). Where can I find information about this on the internet? Not needing to be purchased please.

2006-12-25 10:04:01 · 6 answers · asked by Pip 2

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whats more? is there more stars than there is grains of sands universe?

2006-12-25 09:46:20 · 15 answers · asked by david m 1

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The name of the star enclosed in a crescent moon 2006?

Earlier this year the night sky looked like a greeting card with a bright star enclosed in a crescent moon. I think this star was also visible in the morning along with the moon this year. Can anyone tell me the name of the star along with any further information about it?

2006-12-25 08:10:42 · 7 answers · asked by Anonymous

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If i were to launch a homemade satalite into orbit what prectautions, measurements would i need to take?

2006-12-25 07:53:59 · 9 answers · asked by mike 1

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physics or astronomy chat?

is there a website where I can chat with people knowlegable about the topic of escape velocity? I posted a question about speed needed to leave earth, but am not getting the answer I wanted. Apparently I'm not phrasing my question properly.

2006-12-25 07:44:56 · 6 answers · asked by Sue Naumy 3

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speed needed to leave earth?

I've read here that to go into orbit, a spacecraft has to go thousands of mph to do this due to some physics law. I never understood why the shuttle needs a rocket to get into orbit.
So if it just took off on its own, say at the speed of a jetliner, what happens? If it can cruise at the altitude of a jetliner, why no go into space. What would happen? At the edge of being in outer space, does it just get yanked back down?

2006-12-25 07:12:47 · 8 answers · asked by Sue Naumy 3

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I'm having a problem with my telescope, telescope expert please?

Well I got a Meade refractor, the kind of telescope that you buy at Wal-mart. It looks like a great beginer's telescope for me, but I really wanted a relfector. In fact an Orion reflector, they're a pretty good brand, right?

Well I'm wondering if I should keep the refractor or take that Meade back to get my Reflector. The Meade actually looks decent, but I dunno it's from Wal-mart.

What do you think I should do?

2006-12-25 07:07:29 · 6 answers · asked by Anonymous

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If there was something straight on Earth would it not be straight in space?

Because the Earth is round, does that mean that nothing straight is actually straight? Lets say that somehow a perfectly straight 200,000,000,000,000 mile ruler was made in space. If it was brought down to Earth, would it be like a ruler on a ball? Would only the middle be touching and everything else in the air?

2006-12-25 06:54:28 · 3 answers · asked by bohdan 2

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question about gravity?

if an object was orbiting around a star and the star suddenly dissapered would the planet instantly start moving tangent to its orbit or would it continue to orbit until the light from the star reached the planet. i guess what im asking is does gravity travel in waves at a constant speed like light or does it take instantanious effect? and if it takes an instantanious effect then wouldnt it be possible that gravity is pulling on us from objects that we cant see because they are too far away to see?

2006-12-25 06:03:05 · 8 answers · asked by Anonymous

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