mention few importance of artificial.sattelites ?
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Answer:
Explanation: artificial satellites orbiting something other than the Earth. The Mars Reconnaissance Orbiter is one of those orbiting Mars. Cassini-Huygens orbited Saturn. Venus Express, run by the ESA, orbited Venus.[3] Two GRAIL satellites orbited the moon until December 2012.[4] Several satellites have orbited the Sun for years and one is to be added in 2019. [5]
artificial satellites have several main uses:
Scientific Investigation
Earth observation - including weather forecasting and tracking storms and pollution
Communications - including satellite television and telephone calls
Navigation - including the Global Positioning System (GPS)
Military - including reconnaissance photography and communications (nuclear weapons are not allowed in space)