Used with
permission of Maiken Naylor, University at Buffalo, Buffalo, NY, USA,
http://ublib.buffalo.edu/libraries/units/sel/exhibits/stamps
A solar eclipse takes place when the new moon passing between the sun and the earth blocks the solar radiation and casts its shadow on the earth. It can be total, partial, or annular. Total eclipses here commemorated were observed in Mexico in 1970, and the Philippines in 1995.