Results 21 to 30 of about 362 (148)
Life detection in a universe of false positives
BioEssays, Volume 45, Issue 12, December 2023., 2023 The ultimate goal of astrobiology is to determine the distribution and diversity of life in the universe. But there's a big problem: Most of the planets in our universe are outside our reach. For these exoplanets, can we really ever be certain if they contain life or not?
Harrison B. Smith, Cole Mathis
wiley +1 more source
The Astronomical Journal, 2023 Agrowing avenue for determining the prevalence of life beyond Earth is to search for “technosignatures” from extraterrestrial intelligences/agents. Technosignatures require significant energy to be visible across interstellar space and thus intentional ...
Sofia Z. Sheikh +16 more
doaj +1 more source
On Detecting Interstellar Scintillation in Narrowband Radio SETI
The Astrophysical Journal, 2023 To date, the search for radio technosignatures has focused on sky location as a primary discriminant between technosignature candidates and anthropogenic radio frequency interference (RFI).
Bryan Brzycki +6 more
doaj +1 more source
The Astronomical Journal, 2023 The primary goal of the search for extraterrestrial intelligence is to gain an understanding of the prevalence of technologically advanced beings (organic or inorganic) in the Galaxy.
C. D. Tremblay +16 more
doaj +1 more source
A Simultaneous Dual-site Technosignature Search Using International LOFAR Stations
The Astronomical Journal, 2023 The Search for Extraterrestrial Intelligence aims to find evidence of technosignatures, which can point toward the possible existence of technologically advanced extraterrestrial life. Radio signals similar to those engineered on Earth may be transmitted
Owen A. Johnson +21 more
doaj +1 more source
Real-time Technosignature Strategies with SN 2023ixf
Research Notes of the AAS, 2023 Abstract Several technosignature techniques focus on historic events such as SN 1987A as the basis to search for coordinated signal broadcasts from extraterrestrial agents. The recently discovered SN 2023ixf in the spiral galaxy M101 is the nearest Type II supernova in over a decade, and will serve as an important benchmark event.
James R. A. Davenport +7 more
openaire +2 more sources
The Resilience of Habitable Climates Around Circumbinary Stars
Journal of Geophysical Research: Planets, Volume 125, Issue 9, September 2020., 2020 Abstract Here we use a 3‐D climate system model to study the habitability of Earth‐like planets orbiting in circumbinary systems. In the most extreme cases, Earth‐like planets in circumbinary systems could experience variations in the incident stellar flux of up to ~50% on ~100‐day timescales.
Eric T. Wolf +7 more
wiley +1 more source
Anomaly Detection Methods for Finding Technosignatures
Proceedings of the 13th International Conference on Pattern Recognition Applications and MethodsRohan Loveland, Ryan Sime
openalex +2 more sources
Demography of galactic technosignatures [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Probabilistic arguments about the existence of technological life beyond Earth traditionally refer to the Drake equation to draw possible estimates of the number of technologically advanced civilizations releasing, either intentionally or not, electromagnetic emissions in the Milky Way.
openaire +2 more sources
, 2020 Technosignatures can represent a sign of technology that may infer the existence of intelligent life elsewhere in the universe. This had usually meant searches for extraterrestrial intelligence using narrow-band radio signals or pulsed lasers. Back in 1960 Freeman Dyson put forward the idea that advanced civilizations may construct large structures in ...
Jackson, A. A., Benford, Gregory
openaire +2 more sources