Whispers from the World (Book)

Murmurs of Earth (original title: Murmurs of Earth: The Voyager Interstellar Record) is a science book prepared by American astronomer, astrophysicist and science communicator Carl Sagan together with Ann Druyan and Frank Drake. The book explores the messages carried by the Voyager space probes and humanity’s efforts to express itself in the cosmos.

The book addresses space exploration and humanity’s attempts at communication on a cosmic scale. The main themes are:

• The Voyager Project: The design, objectives and messages carried by the Voyager 1 and 2 probes are explained.
• Messages from Earth: The ways in which humanity expresses itself in the cosmos and the content of the selected messages are examined.
• Scientific and Technological Perspective: Spacecraft, data collection methods and communication technologies are presented using scientific data.
• Cosmic Perspective: The place of humanity and Earth in the universe is discussed in the context of possible communication with other civilizations.

Sagan and his collaborators present technical and scientific information in an accessible manner. The book incorporates historical examples current scientific knowledge and explanations about space research. The narrative avoids personal praise and subjective commentary, favoring an objective tone.