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Nearly 6750 satellites are revolving around our earth till now(18/02/2013)
The first artificial satellite, Sputnik I, was launched by the USSR (Russia) in 1957. Following its launch on October 4, Russia launched Sputnik 2 on November 3. Sputnik 3 was not launched until May, 1958 following the US Explorer and Vanguard satellites in January and March.
During the 1990s, the United States led the world in the number of artificial satellites launched into space. The country sent up 14 satellites.
No THe series of satellites sharing the name Sputnik were launched by the Russiansm the Soviet Union.
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62 satellites so far and recently rishant 1 of pslv 19 has been launched on 26 April 2012
There are thousands of satellites currently orbiting the Earth. The exact number can vary, as new satellites are launched and old ones are decommissioned regularly.
ionosphere
no.
India has launched 56 satellites into space to date. Many of which have since completed their missions and are no longer operational, some have been landed.
None. Natural satellites are not launched, they are already there
Satellites are launched in east direction to use earths rotational velocity and to reduce launch energy.
Yes, Woomera in Australia was used as a launch site for satellites in the past. The WRESAT satellite, launched in 1967, was Australia's first satellite and was launched from Woomera. Additionally, a number of other satellites were also launched from Woomera in the following years.