This feature is a comprehensive look at the observations of Earth from space. The primitive weather satellites of the early sixties gave the first global perspective on Earth. Today, a fleet of satellites continually watch our planet. The satellites provide views of changing weather systems, survey the land, oceans and icecaps. Others monitor the Earth's vital signs - ozone levels, amount of gases in the atmosphere, the health of forests and crops. Many of the images are familiar - the images of the whole Earth without cloud cover known as the GeoSphere, satellite weather images that appear on TV everyday, and the first images of the ozone hole over Antarctica. The beautiful images can be appreciated as art, but most importantly the data can provide an early warning system for changes to come in the 21st Century. Scientists are working through the masses of data from all the satellites to compile a 'Workshop Manual' for Earth. They hope to have the first draft within the next 10 years.