Results 71 to 80 of about 9,504 (208)

The search for extraterrestrial intelligence: Telecommunications technology [PDF]

Efforts to discover evidence of intelligent extraterrestrial life have become not only feasible, but respectable. Fledgling observational projects have begun that will use state-of-the-art hardware to develop sophisticated receiving and data processing ...
Edelson, R. E., Levy, G. S.
core   +1 more source

A bibliography on the search for extraterrestrial intelligence [PDF]

This report presents a uniform compilation of works dealing with the search for extraterrestrial intelligence. Entries are by first author, with cross-reference by topic index and by periodical index.
Connors, M. M., Forward, R. L., Mallove, E. F., Paprotny, Z.   +3 more
core   +1 more source

Earth Detecting Earth: At What Distance Could Earth’s Constellation of Technosignatures Be Detected with Present-day Technology?

The Astronomical Journal
The field of Search for Extraterrestrial Intelligence (SETI) searches for “technosignatures” could provide the first detection of life beyond Earth through the technology that an extraterrestrial intelligence may have created.
Sofia Z. Sheikh, Macy J. Huston, Pinchen Fan, Jason T. Wright, Thomas Beatty, Connor Martini, Ravi Kopparapu, Adam Frank   +7 more
doaj   +1 more source

Interstellar Communication: The Case for Spread Spectrum

, 2011
Spread spectrum, widely employed in modern digital wireless terrestrial radio systems, chooses a signal with a noise-like character and much higher bandwidth than necessary.
Messerschmitt, David G.
core   +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

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

Bayesian approach to SETI

, 2018
The search for technosignatures from hypothetical galactic civilizations is going through a new phase of intense activity. For the first time, a significant fraction of the vast search space is expected to be sampled in the foreseeable future ...
Anderson, Balbi, Claudio Grimaldi, de Geus, Di Stefano, Drake, Enriquez, Foster, Geoffrey W. Marcy, Gray, Grimaldi, Grimaldi, Harp, Horowitz, Isaacson, Lazio, Lazio, Loeb, Misiriotis, Shostak, Tarter, Tellis, Tellis, Trotta, Wright   +24 more
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

The SERENDIP 2 SETI project: Current status [PDF]

Over the past 30 years, interest in extraterrestrial intelligence has progressed from philosophical discussion to rigorous scientific endeavors attempting to make contact.
Bowyer, C. S., Donnelly, C., Herrick, W., Lampton, M., Werthimer, D.   +4 more
core   +1 more source

The FAST-SETI Milky Way Globular Cluster Survey. I. A Pilot Multibeam On-the-fly Search of Five Globular Clusters at the L Band

The Astronomical Journal
We report a narrowband technosignature search toward five Milky Way globular clusters—NGC 6171, NGC 6218, NGC 6254, NGC 6838, and IC 1276—using Five-hundred-meter Aperture Spherical radio Telescope (FAST)’s 19 beam L -band receiver (1.05–1.45 GHz).
Bo-Lun Huang, Zhen-Zhao Tao, Tong-Jie Zhang, Vishal Gajjar   +3 more
doaj   +1 more source