How many Satellites are there floating around the earths orbit?

Answer 1

More than 3,500 satellites orbit the Earth today. Data from these satellites help promote an awareness of the environment, the world, and the universe. The new technologies developed for these satellites have additional applications that benefit life on Earth.
The new technologies created for satellites are transferable and have additional applications, called "spin offs." These technologies represent a valuable national resource that can be applied to new products and processes. For example, by applying the computerized image enhancement technology developed to read Earth resources satellite photographs, experts are now able to provide "maps" of the human body. Unlike X-rays, this application of satellite technology allows doctors to "see" into bones, making problems such as tumors stand out clearly.

Much of the information gathered by satellites shows us what is happening to our Earth. For example, Landsat satellites make accurate maps of the Earth's surface in both visible and infrared light. Landsat maps provide checks on existing maps. Landsat images also help determine where vegetation is healthy or diseased, and serve as a tool for monitoring pollution. A French satellite, called SPOT (from the initials of Satellite Probatoire de L-Observation de la Terre), helped illustrate the damage caused by the explosion of the former Soviet Union's nuclear reactor in Chernobyl.

Scientific satellites such as NASA's Hubble Space Telescope have broadened our knowledge of the universe. Hubble has revealed planet-wide atmospheric storms on Saturn, the birth of stars in a nearby galaxy, the evolution of a supernova, and phenomena that suggests the existence of black holes -- a likely power source for active galaxies.

Answer 2

They don't float, they are in free fall!

Answer 3

more than 3,000 including the moon