论文信息 - The General Limits of Space Travel: We may never visit our neighbors in space, but we should start listening and talking to them. - 字舞流文

The General Limits of Space Travel: We may never visit our neighbors in space, but we should start listening and talking to them.

S. V. Hoerner | S. Hoerner

[1] S. Hoerner. The Search for Signals from Other Civilizations The waiting time for answers may be greater than the longevity of the technical state of mind , 1961 .