  The archives of meteorological satellites permit to find around the world dry
sites well adapted to astronomical observations (in the visible, IR, and
millimetric ranges), as a pre-selection of sites. The GSM (Grating Scale
Monitor) technique permits to qualify some of them as astronomical sites for a
future setting-up of astronomical observatories. Such sites are found in new
astronomical countries or in Developing Countries. At the same time, their
preventive protection from light pollution and/or radio interference has to be
viewed. In practice, once the pre-selection is made, the government of these
countries ought to be alerted for example by IAU and/or UN Office for Outer
Space Affairs. The local site testing through GSM should be carried out in
cooperation with astronomers or scientists of these countries under the
umbrella of IAU. This should be an approach to help to introduce astronomy and
astrophysics in Developing Countries.
