SpaceWatchtower

     This diagram shows the position of the Earth, in relation to the Sun, at the time of the Autumnal Equinox, as well as the other equinox...

    This diagram shows the position of the Earth, in relation to the Sun, at the time of the Summer Solstice, as well as the Winter Solstic...

      Engineers Stanley R. Peterson (left) and Ray Bowerman check-out Intelsat I or Early Bird prior to launch from Complex 17a, Cape Kenned...

                           This photograph shows the Royal Greenwich Observatory in Greenwich Park in south-east London. Earth time zones we...

      This diagram shows the position of the Earth, in relation to the Sun, at the time of the Autumnal Equinox, as well as the other equino...