Results 21 to 30 of about 11,735 (217)
Arguing About Extraterrestrial Intelligence
The Philosophical Quarterly, 2022 Abstract Avi Loeb has defended the hypothesis that the interstellar object, ‘Oumuamua, detected in 2017, is in fact an extraterrestrial artefact. His hypothesis has been widely rejected by the scientific community. On examination however it is not clear why. The puzzle is at the level of argument structure.
openaire +2 more sources
The discovery of ETI as a high-consequence, low-probability event [PDF]
, 2011 The authors use the opportunity of presenting a paper during the 51st International Astronautical Congress in Rio de Janeiro to introduce a numerical method of characterizing the potential significance of any announcement of discovery of extraterrestrial
Harrison +4 more
core +1 more source
Fermi's Paradox - The Last Challenge For Copernicanism? [PDF]
Serbian Astronomical Journal, 2009 We review Fermi's paradox (or the "Great Silence" problem), not only arguably the oldest and crucial problem for the Search for ExtraTerrestrial Intelligence (SETI), but also a conundrum of profound scientific, philosophical and cultural importance. By a
Ćirković, M. M.
doaj +3 more sources
Kardashev’s classification at 50+: A fine vehicle with room for improvement [PDF]
Serbian Astronomical Journal, 2015 We review the history and status of the famous classification of extraterrestrial civilizations given by the great Russian astrophysicist Nikolai Semenovich Kardashev, roughly half a century after it has been proposed.
Ćirković M.M.
doaj +1 more source
A Statistical Estimation of the Occurrence of Extraterrestrial Intelligence in the Milky Way Galaxy
Galaxies, 2021 In the field of astrobiology, the precise location, prevalence, and age of potential extraterrestrial intelligence (ETI) have not been explicitly explored.
Xiang Cai +3 more
doaj +1 more source
On the timescale forcing in astrobiology [PDF]
Serbian Astronomical Journal, 2007 We investigate the effects of correlated global regulation mechanisms, especially Galactic gamma-ray bursts (GRBs), on the temporal distribution of hypothetical inhabited planets, using simple Monte Carlo numerical experiments.
Vukotić B., Ćirković M.M.
doaj +1 more source
The Benefits and Harms of Transmitting Into Space
, 2013 Deliberate and unintentional radio transmissions from Earth propagate into space. These transmissions could be detected by extraterrestrial watchers over interstellar distances.
Abe +81 more
core +1 more source
A Statistical Approach to Illustrate the Challenge of Astrobiology for Public Outreach
Life, 2017 In this study, we attempt to illustrate the competition that constitutes the main challenge of astrobiology, namely the competition between the probability of extraterrestrial life and its detectability.
Frédéric Foucher +3 more
doaj +1 more source
Zygon, 2023 This article explores the essence of the human (insān) as it is understood in Twelver Shīʿī philosophy and mysticism. It presents a Shīʿī philosophical elucidation regarding the possible existence of extraterrestrial intelligent lifeforms and what their
doaj +2 more sources
The search for extraterrestrial intelligence—SETI [PDF]
Acta Astronautica, 1979 Abstract This article is taken from a NASA Special Publication, SP-419, released in March 1978. The publication deals with most of the current major topics in the field of the Search for Extraterrestrial Intelligence (SETI), and, as described in the Preface, was the result of a two year series of Science Workshops carried out for NASA by a team of ...
PHILIP MORRISON +2 more
openaire +1 more source