Amazing Modern Day Technological Wonders: Satellites
Since Sputnik 1 was launched in 1957 by the The Soviet Union, satellites have increased dramatically in use and in number. Our orbiting companions have brought us GPS tracking, mobile phone technology, improved television and a host of other benefits we now take for granted on a daily basis.
The Hubble has been an invaluable tool in our quest to explore the universe without having to leave our own planet. Now upgraded with state of the art, infra-red cameras we are able to not only see farther into space, but also farther in time.