Humans, Astronauts (MAYBE)
Yes it can and has.
space ships and satellites
Asia?
put dynamite in space XD
72 + 35 (foreign) satellites were put into orbit so far (till November 2013).
Satellites stay up in space due to how fast they are traveling. If an object is in motion around a planet at the correct speed it will orbit it without crashing towards the planet.
Scientists are still exploring exactly what can be done in outer space and how we can do it, so mostly the space shuttles and space stations have been used for research about weightlessness, vacuum, and other aspects of being in outer space. Space certainly has some very solid practical applications already, such as communications satellites and global positioning satellites, and one of the functions of space shuttles has been to put satellites in their orbits (although there are also other ways of putting satellites into orbit) and in some cases, to repair satellites that are already in orbit.
how many satellites present in the space
Because satellites are blown up, forming debris, which is called space junk
space satellites are in space and earth satellites are in earth.
The Sputnik satellites were the first sucessful satellites, launched by the Soviets in the 50's.
are space satellites input or output devices