satellites

...space wars? rather than letting enemy satellites spy on us assuming u can; if you want to say its not logical you have to tell me why!!!

...do they substitute the wavelengths? Both Infrared and Microwave bands are invisible to the human eye

I'm looking for recommendations for a 5.1 home-theater in a box type system for a formal-like living room to complement my LCD (I have shelves so mounting is no problem). I am looking in particular for a system much like the Bose V20 system how it doesn't have a complicated receiver (my whole...

...the atmosphere? I believe it has to do something with the light spectrum and distorts our view of the stars and such? If anyone could give further explanation than it would be helpful.

A satellite of mass m is in a circular orbit of radius R2 around a spherical planet of radius R1 made of a material with density X. ( R2 is measured from the center of the planet, not its surface.) Use G for the universal gravitational constant. Question #1: Find the kinetic energy of this...

Is there an advantage, other than probably cost, to having the GPS satellites at 12,000 miles rather than in geostationary orbit? Would it work either way?

I just read the dark side of the sun article found on this web site http://www.yahoo.com/s/1021893 and my son which is 8 yrs old ask me this how do satellites get so close to the sun and don't get burn he understands that are made of different materials Metal but the sun is so hot that will...

...for that matter? http://maps.google.com/maps?ll=40.458262,-80.007505&spn=0.008588,0.01693&t=h&z=16&iwloc=addr&layer=c&cbll=40.457662,-80.007541&panoid=KD0g-IcPQW09qFcP2RU2kg&cbp=12,310.45443546675455,,1,10.375837805207798

My parents used to have software that showed the position of the ISS and various satellites as they orbit the planet. I was wondering if anyone knows about the name of the software that does that, because my parents don't recall what it's called.

How can you calculate the maximum latitude for communication with a geostationary orbit? When I scale the Earth's circumference and a GEO orbit graphically, even with the slight eccentricity of the earth buldging at the equator, it still "visually" appears signal would not be lost. Is there a...

I've figured via Keplers 3rd law that mean altitude for a satellite is about 42,000Km and subtracting Earth's radius gives an altitude of 35000Km. However, what if you wanted a satellite system to give full coverage of the earth's surface, how can you calculate the number of geostationary...

It would seem more economical to build and maintain towers than launch things into orbit.

Please Tell Me As Soon As Possible.

could someone help me? do i need to download software/

orbiting Mars? These spacecrafts can be from any country

...currently orbiting the moon? These spacecrafts can be from any country

In Apollo 13 the space shuttle had to hit the atmosphere at just the right angle in order to avoid bouncing off of it. Why is it that a man-made satellite can fall to earth and manage to penetrate the atmosphere without a problem but for a space shuttle its more complicated?

i could not find the anser

e.g GPS satellites are supposedly easier to launch than geostationary satellites. why???

Say if China (or any other country) attacked and destroyed American GPS/spy/commercial satellites in orbit, what would be our response?