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The Search for Extra-terrestrial Intelligence (SETI) aims to find technological signals of extra-solar origin. Radio frequency SETI is characterized by large unlabeled datasets and complex interference environment. The infinite…

Instrumentation and Methods for Astrophysics · Physics 2019-01-16 Yunfan Gerry Zhang , Ki Hyun Won , Seung Woo Son , Andrew Siemion , Steve Croft

The transmission of news stories in global culture has changed fundamentally in the last three decades. The general public are alerted to breaking stories on increasingly rapid timescales, and the discussion/distortion of facts by writers,…

Physics and Society · Physics 2016-06-22 Duncan Forgan , Alexander Scholz

We motivate the \^G infrared search for extraterrestrial civilizations with large energy supplies. We discuss some philosophical difficulties of SETI, and how communication SETI circumvents them. We review "Dysonian SETI", the search for…

Popular Physics · Physics 2015-06-22 J. T. Wright , B. Mullan , S. Sigurðsson , M. S. Povich

Ultra Fast Astronomy is a new frontier becoming enabled by improved detector technology allowing discovery of optical transients on millisecond to nanosecond time scales. These may reveal counterparts of energetic processes such as fast…

Instrumentation and Methods for Astrophysics · Physics 2021-11-08 Mikhail Denissenya , Eric V. Linder

The radio Search for Extra Terrestrial Intelligence (SETI) aims at identifying intelligent and communicative civilizations in the Universe through the detection of engineered transmissions. In the absence of prior knowledge concerning the…

Signal Processing · Electrical Eng. & Systems 2018-09-12 Gregory Hellbourg , Andrew Xu

The intuition suggested by the Drake equation implies that technology should be less prevalent than biology in the galaxy. However, it has been appreciated for decades in the SETI community that technosignatures could be more abundant,…

Earth and Planetary Astrophysics · Physics 2022-03-22 Jason T. Wright , Jacob Haqq-Misra , Adam Frank , Ravi Kopparapu , Manasvi Lingam , Sofia Z. Sheikh

The goal of the search for extraterrestrial intelligence (SETI) is the detection of non-human technosignatures, such as technology-produced emission in radio observations. While many have speculated about the character of such…

Instrumentation and Methods for Astrophysics · Physics 2022-08-10 Bryan Brzycki , Andrew P. V. Siemion , Imke de Pater , Steve Croft , John Hoang , Cherry Ng , Danny C. Price , Sofia Z. Sheikh , Zihe Zheng

Searches for extra-terrestrial intelligence (SETI) using large survey data often look for possible signatures of astroengineering. We propose to search for physically impossible effects caused by highly advanced technology, by carrying out…

Astrophysics of Galaxies · Physics 2016-09-08 Beatriz Villarroel , Iñigo Imaz , Josefine Bergstedt

The aim of the search for extraterrestrial intelligence (SETI) is to find technologically-capable life beyond Earth through their technosignatures. On 2019 April 29, the Breakthrough Listen SETI project observed Proxima Centauri with the…

As a major approach to looking for life beyond the Earth, the search for extraterrestrial intelligence (SETI) is committed to detecting technosignatures such as engineered radio signals that are indicative of technologically capable life.…

We discuss our transient search for directed energy systems in local galaxies, with calculations indicating the ability of modest searches to detect optical Search for Extraterrestrial Intelligence (SETI) sources in the closest galaxies.…

The Search for Extraterrestrial Intelligence (SETI) makes certain assumptions which guide all current search programs. To illustrate some, this includes (1) that interstellar flight is not possible (2) that the motivations of interstellar…

Popular Physics · Physics 2019-01-31 Kelvin F Long

Microlensing is proving to be one of the best techniques to detect distant, low-mass planets around the most common stars in the Galaxy. In principle, Earth's microlensing signal could offer the chance for other technological civilisations…

Earth and Planetary Astrophysics · Physics 2022-07-20 S. Suphapolthaworn , S. Awiphan , T. Chatchadanoraset , E. Kerins , D. Specht , N. Nakharutai , S. Komonjinda , A. C. Robin

Detection of signals from a possible extrasolar technological civilization is one of the challenging efforts of science. In this work, we propose using natural telescopes made of single or binary gravitational lensing systems to magnify…

Instrumentation and Methods for Astrophysics · Physics 2016-08-31 Sohrab Rahvar

This white paper highlights the work that is needed to anticipate the challenges and societal impacts of a possible technosignature detection. We recommend practical steps to strengthen NASA's astrobiology agenda, guided by the existing…

The discovery of exoplanets has both focused and expanded the search for extraterrestrial intelligence. The consideration of Earth as an exoplanet, the knowledge of the orbital parameters of individual exoplanets, and our new understanding…

Earth and Planetary Astrophysics · Physics 2019-02-06 Jason T. Wright

The Milky Way Galaxy contains an unknown number, $N$, of civilizations that emit electromagnetic radiation (of unknown wavelengths) over a finite lifetime, $L$. Here we are assuming that the radiation is not produced indefinitely, but…

Popular Physics · Physics 2018-04-11 Claudio Grimaldi , Geoffrey W. Marcy , Nathaniel K. Tellis , Frank Drake

The steady advances in computer performance and in programming raise the concern that the ability of computers would overtake that of the human brain, an occurrence termed "the Singularity". While comparing the size of the human brain and…

Popular Physics · Physics 2020-08-26 Joe Gale , Amri Wandel , Hugh Hill

The primary goal of the search for extraterrestrial intelligence (SETI) is to gain an understanding of the prevalence of technologically advanced beings (organic or inorganic) in the Galaxy. One way to approach this is to look for…

Technosignatures refer to observational manifestations of technology that could be detected through astronomical means. Most previous searches for technosignatures have focused on searches for radio signals, but many current and future…