Results 91 to 100 of about 11,735 (217)

Direct Contact Among Galactic Civilizations by Relativistic Interstellar Spaceflight [PDF]

, 1962
Direct contact among galactic populations by relativistic interstellar ...
Sagan, Carl
core   +1 more source

At what wavelengths should we search for signals from extraterrestrial intelligence? (SETI/infrared communication/interstellar communication/extraterrestrial intelligence) [PDF]

Searches for extraterrestrial intelligence concentrate on attempts to receive signals in the microwave region, the argument being given that communication occurs there at minimum broadcasted power.
Townes, C. H.
core   +1 more source

A lunar base for SETI (Search for Extraterrestrial Intelligence) [PDF]

The possibilities of using lanar based radio antennas in search of intelligent extraterrestrial communications is explored. The proposed NASA search will have two search modes: (1) An all sky survey covering the frequency range from 1 to 10 GHz; and (2 ...
Oliver, Bernard M.
core   +1 more source

Second Symposium on Chemical Evolution and the Origin of Life [PDF]

Recent findings by NASA Exobiology investigators are reported. Scientific papers are presented in the following areas: cosmic evolution of biogenic compounds, prebiotic evolution (planetary and molecular), early evolution of life (biological and ...
Devincenzi, D. L., model.
core   +1 more source

In Search of Extraterrestrial Artificial Intelligence Through Dyson Sphere–like Structures around Primordial Black Holes

The Astrophysical Journal
Are we alone? It is a compelling question that human beings have confronted for centuries. The search for extraterrestrial life is a broad range of quests for finding simple forms of life up to intelligent beings in the Universe. The plausible assumption
Shant Baghram
doaj   +1 more source

Multibeam SETI Observations Toward Nearby M Dwarfs with FAST

The Astronomical Journal
The search for extraterrestrial intelligence (SETI) targeted searches aim to observe specific areas and objects to find possible technosignatures. Many SETI researches have focused on nearby stars and their planets in recent years.
Xiao-Hang Luan, Bo-Lun Huang, Zhen-Zhao Tao, Yan Cui, Tong-Jie Zhang, Pei Wang   +5 more
doaj   +1 more source

Extraterrestrial Intelligence [PDF]

Nature, 1973
openaire   +1 more source

Alien Mindscapes-A Perspective on the Search for Extraterrestrial Intelligence. [PDF]

Astrobiology, 2016
Cabrol NA.
europepmc   +1 more source

Starry Messages: Searching for Signatures of Interstellar Archaeology

, 2009
Searching for signatures of cosmic-scale archaeological artifacts such as Dyson spheres or Kardashev civilizations is an interesting alternative to conventional SETI.
Carrigan Jr, Richard A.
core