ቁልፍ ቃል Cosmic Calendar
Chaco Canyon, located in northwest New Mexico, is perhaps the only site in the world constructed in an elaborate pattern that mirrors the yearly...
Carl Sagan covers a wide range of scientific subjects, including the origin of life and a perspective of our place in the universe.
ነፃ ያልተገደበ መዳረሻ, ማንኛውንም ነገር ይፈልጉ ምንም ማስታወቂያዎች የሉም, በሚሊዮኖች የሚቆጠሩ ርዕሶች እና በየቀኑ ተጨምረዋል, ሁሉም የመሣሪያ ስርዓቶች እና ሙሉ ለሙሉ የተመቻቹ, በየትኛውም ቦታ እና በማንኛውም ጊዜ
በፍጥነት ይመዝገቡ!
ነፃ መለያ ይፍጠሩ