Midira ao amin'ny vondrom-piarahamonina Z - mahazo fanasana hetsika, fanambarana, Digest isan-kerinandro, ary fahafahana mandray anjara.
The astronomer, science communicator, thinker, writer, and teacher Carl Sagan (1934–1996) had an influence as a scientist that is almost unimaginable today.…